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毅進文憑 數學 單元五 基礎統計學 2017/18 學員版

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  • 20 17 /18

  • 2

    2017

  • 1

    3

    4

    4

    5

    9

    10

    26

    26

    27

    33

    41

    46

    52

    52

    61

    67

    69

    Excel 92

    Excel 92

    Excel 93

    105

    112

    : 113

    : 114

    117

  • 1

    Herbert George Wells18661946

    1

    70

    2,500

    55910

    2457.4%

    http://yrc.hkfyg.org.hk/chi/p186.html

    1993

    49

    8

    500800

    http://www.cuhk.edu.hk/proj/growthstd/chinese/gs_surve.htm

    http://yrc.hkfyg.org.hk/chi/p186.htmlhttp://www.cuhk.edu.hk/proj/growthstd/chinese/gs_surve.htm
  • 2

    3030

    30

    559500800

    559

    500

    800

    162016741662

    1604

    SurveySampling

    Statistical ForecastingEconometrics

    ManagerialStatisticsSocial Statistics

    2

    http://www.hudong.com/wiki/%E4%BF%A1%E6%81%AF
  • 3

    Legal StatisticsDemographic Statistics

    BiostatisticsStatistical Linguistics

    Statistical PhysicsPsychometrics

    EnvironometricsChemometrics

    8

    mean

    standard deviation

  • 4

    1000

    500

    3

    4

  • 5

    X

    5-1

    census

    sample survey

    population

    element / individual

    sample

  • 6

    sampling frame5-1

    sample size

    5-1

    00001 G032xxx(9) 23456789 3 312

    00002 H453xxx(0) 34567899 23 2309

    30000 D564xxx(3) 21111111 25 2511

  • 7

    5-2

  • 8

    5-1

    5-1

    5-2

    TVC

    500

    500

    5-1

  • 9

    5-3

    405

    55

    5-4

    5-3

    35

    random sampling

    non-random sampling

  • 10

    1.

    random sampling without replacement

    Nn

    nN

    simple random sampling

    5-5

    203

    20

    1/20

    19

    1/19

    181/18

    simple random sample

  • 11

    5-5

    n

    5-6

    10000500

    10000500

    5-7

  • 12

    5-1

    1. 10020

    (a) 100

    (b) 20

    (c) 20

    (d) 100

    2. 2020

    5

    3.

    (a)

    (b)

    (c)

    (d)

    4.

    5.

    6.

    (a) 100

    (b)

    (c) 10

    (d) DVD20DVD

    5

  • 13

    7.

    (a) 3020

    1202140

    20

    (b) 104

    (c) 20050

    1203030

  • 14

  • 15

    2.

    systematic sampling

    countably

    infinite

    systematic sample

    5-8

    5

    15

  • 16

    5-3

    5A

    1 09001 F 16

    2 09002 M 16

    3 09003 F 17

    4 09004 F 16

    5 09005 M 16

    6 09006 F 17

    7 09007 M 17

    8 09008 M 16

    9 09009 F 16

    10 09010 M 17

    11 09011 M 18

    12 09012 F 19

    13 09013 M 20

    14 09014 M 19

    15 09015 M 18

    151~15

    sampling intervalk

    153

    5

    Nk

    n

    k3

  • 17

    random

    start

    RAN# Ran#

    0.561

    (a) = = 0.561 3 = 1.683 2

    22+32+232+332+43258

    1114

    1a n k

    5-4

    5A

    1 09001 F 16

    2 09002 M 16

    3 09003 F 17

    4 09004 F 16

    5 09005 M 16

    6 09006 F 17

    7 09007 M 17

    8 09008 M 16

    9 09009 F 16

  • 18

    10 09010 M 17

    11 09011 M 18

    12 09012 F 19

    13 09013 M 20

    14 09014 M 19

    15 09015 M 18

    5-9

    6-94

    153.75

    4

    Nk

    n

    153

    123

    4

    Nk

    n

    361215

    3

    30

  • 19

    3.

    stratified random sampling

    5-10

    5

    20000

    8000

    50000

    200000

    300

  • 20

    70 40

    20 10 60

    N = 200

    n=40

    strata

    group6-8

    N=200n=40

    : 40 : 200 1:5n N

    70

    5

    40

    5

    20

    5

    10

    5

    60

    5

    1484212

  • 21

    14 + 8 + 4 + 2 + 12 = 40 =

    = 70 : 40 :

    20 : 10 : 60 = 14 : 8 : 4 : 2 : 12

    n

    N

    (70)

    (40)

    (20)

    (10)

    (60)

    2

    3

    12

    4

    8

    5

    4

    2

    14

    1

  • 22

    5-2

    1. 500

    20 30 220

    30 40 150

    40 50 40

    50 90

    500

    100

    2. 3

    1500

    1200

    1800

    4500

    450

  • 23

  • 24

    1.

    2.

    1.

    2.

    1.

    2.

    5-3

    1. 1200

    30

    2. 1534250

    3 100

    100001~100

    (a) 0.75410

    (b) 20

  • 25

  • 26

    Data Representation

    Variable

    Data

    quantitative variable

    interval variable

    qualitative variable

    categorical variable

    continuous

    variable

    discrete

    variable

    nominal

    variable

    ordinal

    variable

  • 27

    5-5

    1.

    a.

    b.

    2.

    a.

    0 = 1 =

    b.

    frequency

    distribution

    raw data

    number of classes

    class width / size

  • 28

    520

    k

    max min x x R

    ck k

    maxx =

    minx =

    R = max minx x range

    cc

    c05051050100

    150

    k = 10 maxx = 106 minx = 10

    106 109.6

    10

    Rc

    k

    10

  • 29

    5-6

    max minx xR

    k k

    (c)

    ()

    89.7 90 100

    1.45 1.5

    47.3 48 50

    9.2 10

    5-11

    50HK$

    9450 8850 9350 9200 8750 9900 7550 8350 8350

    8100 8800 7700 9100 8400 8050 7900 8400 7600

    8600 8900 9300 8800 10100 9700 8800 7700 7700

    8050 8200 8650 7750 9500 8100 7750 10150 7900

    10600 9500 11400 15100 16450 15950 15650 12550 14250

    11250 11800 10000 14000 13000

  • 30

    6 maxx = 16450 minx = 7550

    16 450 7 5501483.3

    6

    R

    k

    c= 1500

    5-7

    11115

    7500< 9000 11111111111111111111 1 26

    9000

  • 31

    5-12

    2008

    5-8

    1 %

    < 5 71 1.9

    5 14 416 11.1

    15 24 380 10.1

    25 34 541 14.4

    35 44 553 14.7

    45 54 652 17.4

    55 64 438 11.7

    65 702 18.7

    3753 100.0

    1

    2%

    6518.7%

    25343544550

  • 32

    5-13

    2010

    5-9

    2

    15.1 6.1

    19.7 6.9

    16.8 7.7

    3.6 4.2

    55.2 24.9

    19700

    3600

  • 33

    1.

    Histogram

    5-8

  • 34

    5-2

    2.

    frequency polygon

    5-3

  • 35

    density

    curve

    5-3

    5-4

  • 36

  • 37

    3.

    (cumulative frequency polygon) 5-10

    :

    (X)

    ()

    (Y)

    0 < 5 0 5 71 5 71

    5 14 5 14.5 416 14.5 71+416=487

    15 24 14.5 24.5 380 24.5 487+380=867

    25 34 24.5 34.5 541 34.5 867+541=1408

    35 44 34.5 44.5 553 44.5 1408+553=1961

    45 54 44.5 54.5 652 54.5 1961+652=2613

    55 64 54.5 64.5 438 64.5 2613+438=3051

    65 74 64.5 74.5 702 74.5 3051+702=3753

    3753

    Y X

  • 38

    5-4

    1. 2. ()32

    :.

    48 61 78 93 98 94 137 141

    87 103 85 97 108 77 60 75

    107 99 80 59 147 149 118 116

    122 32 115 64 79 73 80 89

    (a) ,

    30-49, 50-69, ;

    (b) (a);

    (c) 100

    2. 1824

    40

    129.2 185.3 218.1 182.5 142.8 155.2 170.0 151.3 187.5 145.6

    167.3 161.0 178.7 165.0 172.5 191.1 150.7 187.7 165.0 172.5

    191.1 150.7 187.0 173.7 178.2 161.7 170.1 165.8 214.6 136.7

    278.8 175.6 188.7 132.1 158.5 146.4 209.1 175.4 182.0 173.6

    (a) 8

    (b) 121

    (c) (b)

    (d) (c)

    (e)

    (f) 181200

    (g) 175

  • 39

  • 40

  • 41

    bar chart

    pie chart

    line charttime chart

    1.

  • 42

    5-14

    5-11 2010

    21.9

    35.8

    64.8

    13.7

    24.5

    160.7

    5-5

  • 43

    2.

    360

    100%

    :

    =

    360

    5-15

    5-145-11

    :

    5-12

    21.9 21.9

    360 49.1160.7

    21.9

    100% 13.6160.7

    35.8 35.8

    360 80.2160.7

    35.8

    100% 22.3160.7

    64.8 64.8

    360 145.2160.7

    64.8

    100% 40.3160.7

    13.7

    13.7360 30.7

    160.7

    13.7100% 8.5

    160.7

    24.5

    24.5360 54.9

    160.7

    24.5100% 15.2

    160.7

    160.7 360 100

  • 44

    5-12

    3.

  • 45

    5-16

    20012009

    5-13

    2001 92578 38034

    2002 90297 37319

    2003 86738 36570

    2004 84509 33664

    2005 85784 33687

    2006 84087 37991

    2007 80690 24576

    2008 84565 25009

    2009 88234 30773

    2006

  • 46

    1.

    (Scatter Diagram) MS Excel

    YX

    10

    ()

    (X)

    ()

    (Y)

    2.2 15

    2.5 16

    2.8 22

    3.3 17

    3.8 24

    4.0 18

    4.5 25

    5.0 19

    5.6 33

    6.0 30

  • 47

    2.

    (Stem and Leaf Diagram)

    : 42, 44, 56, 56, 58, 59, 63, 63, 63, 65, 67

    : 421042

    4 2 4

    5 6 6 8 9

    6 3 3 3 5 7

    () 67-42= 25

    = 59, = 63

    3.

    (Pictogram),

    201530

  • 48

    5-5

    1.

    1 374.7

    2 592.6

    3 553.8

    4 511.5

    5 204.1

    6 82.0

    2.

    1524 285.0 273.6

    2539 18.7 23.1

    40 35.1 35.0

    (a)

    (b) (a)

  • 49

    3.

    2479210

    2036

    (a) ?

    (b)

    (c) 1000

    ?

    4. AB

    A 11 10 8 12 20 30 24 4 6 16 20 18 25 34

    B 7 8 10 11 14 22 18 2 6 8 6 7 9 13

    (a) AB

    (b)

    ?

  • 50

    5. 29

    53, 42, 51, 60, 70, 31, 42, 51, 62, 74, 36, 35, 49, 59, 49,

    35, 33, 69, 53,47, 32, 32, 44, 45, 65, 30, 79, 53, 65

    (a)

    (b)

    6.

    :

    () 10 28 12 11 26 23 20 15 17 18

    () 24 28 28 21 25 45 38 54 42 34

    (a)

    (b) ?

  • 51

  • 52

    averageaverage

    meanaverage

    arithmetic mean

    mode

    weighted mean

    median

  • 53

    geometric mean

    truncated meanharmonic mean

    Summation Notation

    5-17

    10000021 ..... xxx

    10000021

    100000

    1

    ..... xxxxi

    i

    i= 1 x11

    100,000

    x

    3

    1 2 3

    1

    i

    i

    x x x x

    i

    3

    1 2 3

    1

    k

    k

    x x x x

    k

    321

    3

    1

    3

    1

    xxxxxk

    k

    i

    i

  • 54

    1. (Sample Arithmetic Mean)

    n nxxx ,.....,, 21

    .

    n

    i

    in x

    nn

    xxxx

    1

    21 1 .....

    5-18

    5

    18, 19, 17, 21, 30

    = 1

    18 19 17 21 30 215

    21

    smoothing effect

    30

  • 55

    4

    3

    2

    0

    17 21

    18 21

    30 21 4 3 2 0

    19 21

    21 21

    30211718

    1921

    Bill Gates

    Central

    Tendency

    61

  • 56

    2. (Weighted Mean)

    weight

    5-19

    4

    5-14

    90 1

    78 2

    85 5

    79 2

    1

    90 78 85 79 834

    x

    (*) 83 (79)4

    1(85)

    4

    1(78)

    4

    1(90)

    4

    1x

    1

    4(*)

    5-14

  • 57

    n

    ii

    ii

    n

    nnw

    w

    xw

    wwwxwxwxwx

    1

    n

    1i

    21

    2211

    ....

    .....

    1 90 2 78 5 85 2 7982.9

    1 2 5 2wx

    x = 83 wx = 82.9 x wx

    5-20

    9

    $11,500$50,000

    $15350

    2345 6789

    $15350

    $11500

    = 9 11500 50 000

    $15 35010

  • 58

    3.

    positional average

    n

    (1

    2

    n )th

    1

    2

    nX

    1

    2 2

    2

    n nX X

    2

    5-21

    97, 9, 15, 2, 32, 25, 14, 8, 47

    2, 7, 8, 9, 14, 15, 25, 32, 47

    9 1

    2

    = 5

    M = 14

    5-22

    5-21592, 7, 8, 9,

    14, 15, 25, 32, 47, 59

    1010

    52

    101 6

    2

    = 14 15

    14.52

  • 59

    5-23

    5-20

    11500, 11500, 11500, 11500, 11500, 11500, 11500, 11500,

    11500, 50000

    1010

    52

    101 6

    2

    =11500 11500

    2

    = $11500

    $50000

    5-24

    5 5.5 6 6.5 7 7.5 8

    5 7 25 28 28 15 4

  • 60

    6.57

    4.

    5-25

    (i) 1, 2, 2, 2, 3, 4, 5

    (ii) 1, 2, 2, 2, 3, 4, 5, 5, 5

    (iii) 1, 2, 3, 4, 5

    (i) 22

    (ii) 2525

    (iii)

    5-25

    ,

  • 61

    (i)

  • 62

    010 1f 010.49 1f

    1120 2f 10.520.49 2f

    2130 3f 20.530.49 3f . . .

    .

    .

    . . . .

    .

    .

    .

    0.01

    (ii)

    21

    2421

  • 63

    1.

    5-26

    20

    5-16

    = X

    0 < 2000 3

    2000 < 4000 4

    4000 < 6000 8

    6000 < 8000 3

    8000 < 18000 2

    20 = n

    nxn

    xn

    xn

    x1

    ....11

    21

    ix

    i i

    w

    i

    f xx

    f

    if =i

    ix =i

  • 64

    [a, b)

    if

    2i

    a bx

    0 < 2000 3 0 2 000

    2

    1000

    2000 < 4000 4 3000

    4000 < 6000 8 5000

    6000 < 8000 3 7000

    8000 < 18000 2 13000

    20

    X =[31 000+43 000+85 000+]/20

    X 5100

    2.

    th1

    2

    n

    2 L

    mc

    nf

    M L cf

    L =

    n =

    L

    f =

    mcf

    =

    c =

  • 65

    5-16

    th th

    th1 20 1 10.52 2

    n

    5-1710.5 15843

    4000 < 600040006000

    5-17

    0< 2000 3

    2000< 4000 4

    4000< 6000 8

    6000< 8000 3

    8000< 18000 2

    20

    20 72 24 000 2 000 4 750

    8

    L

    mc

    nf

    M L cf

    0 2000 3 0 2000.5 3

    2001 4000 4 2000.5 4000.5 4

    4001 6000 8 4000.5 6000.5 8

    L= 4000.540014,000.5 6,000.5

    4,001 6,000

    L 7L

    f

    mcf

  • 66

    3.

    modal class

    10

    1 2

    M L c

    L =

    1 =

    2 =

    c =

    5-16

    4000

  • 67

    5-27

    5-18

    A B

    66 40

    68 42

    70 70

    70 70

    70 70

    72 98

    74 100

    5-19

    A B

    70 70

    70 70

    70 70

  • 68

    5-19

    5-7

    5-185-7

    A70

    4

    B30

  • 69

    dispersion

    1.

    (Range),

    ():

    /

    Range

    Inter-quartile

    range

    Variance

    Standard

    deviation

    () =

  • 70

    5-28

    59, 60, 23, 80, 97, 45, 77, 20, 14, 87

    = 97 14 = 83

    ():

    5-29

    80()

    41 - 50 51 - 60 61 - 70 71 - 80 81 - 90

    40.5 50.5 50.5 60.5 60.5 70.5 70.5 80.5 80.5 90.5

    12 34 25 8 1

    = 90.5 40.5 = 50

    5-29

    10

    2.

    3. (Inter-Quartile Range)

    50%

    nYYY ...,,, 21

    () =

  • 71

    (quartile)

    (Q1)

    25%

    (Q2)

    50%

    (Q3)

    75%

    InterQuartile Range, IQR

    Quartile deviation

    = (Q3) (Q1)

    =

    (Q3) (Q1))

  • 72

    1. th2

    1)(n (Q2)

    2.

    3. th2

    1)(n

    (Q1)

    (Q3)

    5-30

    20, 15, 40, 19, 2, 30, 16

    2, 15, 16, 19, 20, 30, 40, n=7

    (Q2) = 4 2

    1)(7

    th , Q2 = 19

    3

    () ()

    2 15 16 19 20 30 40

    Q1 = (3+1)/2 = 2

    Q1 = 15

    (Q2)

    Q3 = (3+1)/2= 2,

    (Q3) = 30

    : Q1 = 15 Q2 = 19Q3 = 30,

    5-31

    44, 9, 9, -3, 1, -5, 6, 9, 2, 18

    -5, -3, 1, 2, 6, 9, 9, 9, 18, 44, n=10

    = 44 (-5) = 49

    (Q2) = 5.5 2

    1)(10

    , Q2 = 7.5

    2

    9)(6

  • 73

    5

    () ()

    -5 -3 1 2 6 9 9 9 18 44

    Q1 = (5+1)/2 = 3 ,

    Q1 =1

    7.5

    (Q2)

    Q3 = (5+1)/2= 3

    (Q3) = 9

    : Q1 = 1 Q2 = 7.5Q3 = 9,

    Q3 - Q1 = 9 1 = 8

    4 2

    19

    2

    QQ 13

    5-32

    3 4 5 6 7 8 9 10

    2 4 5 7 10 9 2 1

    (n)2 + 4 +5 + 7 + 10 + 9 + 2 + 1 = 40

    Q2 = 20.5 2

    1)(40

    2021,

    Q2=7

    Q1 _____ ______ Q1=_____

    Q3 ______ ______Q3=______

    =________ = _________

    N

  • 74

    (Q1) 4

    N (25%)

    , (Q2)4

    2N (50%)

    (Q3)4

    3N (75%)

    5-33

    5-29, 80()

    41 - 50 51 - 60 61 - 70 71 - 80 81 - 90

    12 34 25 8 1

    (i)

    (ii)

    (i) 80

    ()

    () 40.5 50.5 60.5 70.5 80. 90.5

    0 12 46 71 79 80

    (ii) Q1 N/4 =80/4=20Q3 3N/4=3(80/4)= 60

    Q1=52 , Q3= 66

    66 52=14

  • 75

    (Box and Whisker Diagram /Boxplot) ,

    ()

    (Q1)(Q3)

    (Q1) (Q3)(Q2)

    5-34

    ()

    (Q1) = 64, (Q3) = 72

    (Q2) = 69, =72 64 = 8

    = = 76 56 = 20

  • 76

    4.

    ix x ix

    ix x ix x

    1 2, , , nx x x x

    1

    n

    i

    i

    x x

    1

    n

    i

    i

    x x

    1

    n

    i

    i

    x x

    1

    0n

    i

    i

    x x

    2

    1

    n

    i

    i

    x x

  • 77

    2

    1

    1n

    i

    i

    x xn

    x x ix x

    2

    1

    1n

    i

    i

    x xn

    2

    5.

    (SD) = 2

    1

    1n

    i

    i

    x xn

    2

    2s s

    22

    1

    1

    1

    n

    i

    i

    s x xn

    2

    1

    1

    1

    n

    i

    i

    s x xn

    nn-1

  • 78

    (i)

    2

    1

    1

    1

    n

    i

    i

    s x xn

    n=

    (ii) N

    2

    1

    1N

    i

    i

    x xN

    N=

  • 79

    5-35

    59, 60, 23, 80, 97, 45, 77, 20, 14, 87

    Casio fx-3650P Casio fx-50FH

    1. SD MODEMODE1

    SD MODEMODE4

    SD

    2. SHIFTMODE1

    EXE SHIFT91

    EXE

    3.

    59M+60M+23M+80M+ 14M+87M+

    4. (n)

    Shift13EXE10

    ( )

    Shift21EXE56.2

    (n-1)

    Shift23EXE29.727

    (n)

    Shift22EXE28.202

    (:)

    SD = 2

    1

    1

    1

    n

    i

    i

    x xn

    = 29.7

    SD = 2

    1

    1n

    i

    i

    x xn

    = 28.2

  • 80

    (i)

    2

    1

    1

    1

    n

    i i

    i

    s f x xn

    n =

    1

    n

    i

    i

    f

    (ii)

    2

    1

    1N

    i i

    i

    f x xN

    N =

    N

    ii

    f1

    5-36

    100IQ

    IQ 45-

  • 81

    100SHIFT29M+

    110SHIFT24M+

    120SHIFT12M+

    129.5SHIFT4M+

    4. (n)

    Shift13EXE100

    (n-1)

    Shift23EXE14.544

    (:)

    2

    1

    114.5

    1

    n

    i i

    i

    s f x xn

    6.

    Coefficient of Variation

    100

    20

    =

    = %100

    x

    s

    https://zh.wikipedia.org/wiki/%E6%A6%82%E7%8E%87%E5%88%86%E5%B8%83https://zh.wikipedia.org/wiki/%E6%AD%B8%E4%B8%80%E5%8C%96
  • 82

    5-37

    12, 14, 28, 36, 39, 42

    = 6

    423936281412 = 28.5

    =

    16

    5.28425.28395.2836

    5.28285.28145.2812

    222

    222

    = 12.90

    = %1005.28

    90.12 = 45.25%

    5-38

    273.2

    1205.6

    = %85.11%10027

    2.3

    = %67.4%100120

    6.5

    5-39

    5-28

    59, 60, 23, 80, 97, 45, 77, 20, 14, 87

    (a)

    (b) 60.5 32

    ?

  • 83

    (a) = 10

    87 14 20 77 45 97 80 23 60 59

    = 56.20

    =

    110

    2.5687..2.56802.5623222

    = 29.73

    (b) = %1002.56

    73.29 = 52.90%

    (c) = %10050.60

    32 = 52.89%

    (d)

    5-6

    1. 5-5, 5:

    53, 42, 51, 60, 70, 31, 42, 51, 62, 74, 36, 35, 49, 59, 49,

    35, 33, 69, 53, 47, 32, 32, 44, 45, 65, 30, 79, 53, 65

    (a)

    (b)

    2.

    10

    A 8.2 10.2 7.6 7.8 7.4 7.8 8.0 6.6 10.8 8.6

    C 10.8 9.4 9.8 9.5 11.4 10.5 11.0 9.6 10.4 10.6

    (a)

    (b) (a),

  • 84

    3. 20232425

    20

    4. 1285312

    558

    5. A30

    90 5

    80 22

    78 1

    10 1

    2 1

    30

    5 90 22 80 1 78 1 10 1 276.7

    30

    i i

    i

    w xx

    w

    78

    2, 10, 78, 80,..,80, 90,., 90

    (22) (5)

    3

    6.

  • 85

    7.

    8..

    A 87 86 19 70 80 72 55

    B 75 39 80 64 85 65 50

    C 71 82 50 52 67 82 59

    5% 10% 5% 15% 5% 10% 50%

    (a)

    (b) ?

    9.

    78 81 91

    90 70 69

    400

    (a)

    (b)

    (c)

    433

  • 86

    10.

    1:002:0015

    148

    0 < 5 8

    5 < 10 11

    10 < 15 37

    15 < 20 34

    20 < 25 30

    25 < 30 28

    148

    (a)

    (b)

    (c) (a)(b)

    11.

    100200

    0 2 1 3 39

    3 5 4 2 21

    6 8 7 6 19

    911 10 18 21

    1214 13 35 22

    1517 16 21 18

    1820 19 9 24

    2123 22 6 36

    - 100 200

  • 87

    11. (a)

    (b)

    (c) (a)(b)

    12.

    1 2 3

    250

    280

    290

    300

    350

    270

    250

    290

    300

    300

    320

    310

    (a) 1x 2x 3x

    (b)

    123x

    (c) 1 2 33

    x x xx

    123x x

    (d) (c) 123x x

    13. 5-36100IQ

    IQ 45-

  • 88

    14. 100

    ()

    10-11 10.5 6

    12-13 12.5 13

    14-15 14.5 29

    16-17 16.5 34

    18-19 18.5 11

    20-21 20.5 4

    22-23 22.5 2

    24-25 24.5 1

    (a)

    (b)

    (c)

    15. 15

    ():

    23, 40, 23, 30, 22, 22, 29, 21, 28, 21, 28, 24, 20, 24, 18

    (a)

    (b)

    (c)

    16. , 20

    0100

    0 3 0 6 8 1 7

    1 2 1 7 6

    2 1 4

    3 2 6 3 4

    6 6 5 9 7

  • 89

    (a)

    (b)

    (c)

    17.

    40

    46 48 48 50 52 53 55 55 56 56

    57 57 58 58 59 60 60 61 61 61

    61 62 62 62 63 63 63 64 64 65

    65 66 67 67 68 68 68 69 70 74

    (a)

    (b)

    (c) 5

    46-5152-57

    (d)

    (e)

    (f)

    (g) (a) (c)(e)??

  • 90

  • 91

  • 92

    Excel

    80

    Microsoft Excel

    Excel

    1. Excel

    Excel

    Excel

    Microsoft Excel 2013

  • 93

    Excel

    C1 = A1 + B1

    C1A1B1

    C1

    = A1 + B1

    C1A1B1

    Excel=

    Excel

    2.1

    Excel

    + =

    - >

    * <

    / >=

    %

  • 94

    2.

    Excel

    (Menu Bar)fx

    1

    Excel

    Excel 2010

    :

    AVERAGE() AVERAGE(number 1, number2,..)

    MEDIAN() MEDIAN(number 1, number2,..)

    MODE() MODE.SNGL(number 1, number2,..)

    MODE.MULT(number 1, number2,..)

    SUM() SUM(number 1, number2,..)

    STDEV.S() STDEV.S(number 1, number2,..)

    VLOOKUP() VLOOKUP(lookup_value,table,..)

    1

    2

    3

  • 95

    Excel

    number1, number2,

    number1, number2

    ExcelA1C4A1C4

    12

    5-3

    1 09001 F 16 61 30

    2 09002 M 16 43 79

    3 09003 F 17 77 57

    4 09004 F 16 36 87

    5 09005 M 16 40 58

    6 09006 F 17 58 59

    7 09007 M 17 45 73

    8 09008 M 16 68 86

    H1I1

  • 96

    2.1 SUM

    SUM

    (a)

    H2=SUM(F2G2),

    H2H9

    (b)

    1. H2fx (N)SUM

    2. F2 G2

    3. H2H9

  • 97

    SUMExcel

    ExcelSUM

    Enter

    2.2 (AVERAGE)

    AVERAGESUM

    (a)

    I2 fx (N)AVERAGE

    F2 G2

    I2I9

  • 98

    AVERAGE

    40%60%

    (b)

    H2=F2*0.4+G2*0.6,

    I2 I9

    I2I9

    (a)

    1

    2

  • 99

    2.3 (MEDIAN)

    MEDIAN

    MEDIAN1, 2, ...

    MEDIAN1, 2, 3, 4, 53MEDIAN1, 2, 3, 4, 5, 6

    3.534

    K2=MEDIAN(I2:I9),

    (61.8+64.6)/2= 63.2

    2.4 (STDEV.S)

    EXCEL 2010STDEVS

    STDEV.S

    STDEV.S1, 2, ...

    (-3, 4, 5)STDEV.S(-3, 4, 54.35889..

    K5=STDEV.S(I2:I9),

  • 100

    n-1 = 10.91208..

    2.5 (Mode)

    MODE

    MODE.SGNL1, 2, ..., MODE.MULI1, 2, ...

    MODE.SGNL1, 2, 2, 32

    MODE.MULI1, 1, 2, 2, 31, 2

    MODE.SGNLMODE.MULI

    K8=MODE.SGNL (E2:E9),

    16

    MODE.SGNL

  • 101

    2.6 LOOKUP

    VLOOKUP

    LOOKUP

    VLOOKUP(lookup_value,table_array,col_index_num,range_lookup)

    lookup_value

    table_array

    col_index_num

    range_lookup

    range_lookupTrue

    lookup_value

    Falselookup_value

    True

    6b12b13

    B12VLOOKUP

    lookup_value 6 (6)

    table_array A2:I9 ()

    col_index_num 2 (2)

    range_lookup

  • 102

    6.

    6, B13VLOOKUP

    (6,A2:I9,9) VLOOKUP(6,A2:I9,9)

    6

    58.6.

    : VLOOKUP()

  • 103

    5-7

    1. 5-3

    1 9001 F 16 61 30 65

    2 9002 M 16 43 79 59

    3 9003 F 17 77 57 33

    4 9004 F 16 36 87 69

    5 9005 M 16 40 58 38

    6 9006 F 17 58 59 35

    7 9007 M 17 45 73 73

    8 9008 M 16 68 86 85

    9 9009 F 16 62 25 47

    10 9010 M 17 30 62 24

    11 9011 M 18 73 36 59

    12 9012 F 19 53 66 84

    13 9013 M 20 69 21 63

    14 9014 M 19 62 41 47

    15 9015 M 18 52 86 89

    1. I1 ,

    I2 I16

    2. J1 1

    , J2 J16

    3. K1 2 2:3:5

    , K2 K16

    4. D18, D19, D20, D21, D22

    E18 H23

    5. D23

    F24 H24

    6. =VLOOKUP(8,A2:K16,11)

    7. VLOOKUP()

  • 104

  • 105

    ?

  • 106

    (1)

    X

    80%X

    (2)

  • 107

    (3)

    (4)

    5, 9, 37, 69, 70, 71, 72, 75, 78, 84

    1

    5 9 37 69 70 71 72 75 78 84 5710

    x

    59

    (70 + 71)/2 = 70.5

  • 108

    1x

    2x

    2 1x x

    Bill Gates 1x

    1 2x x

    (5)

    5-40

    ABC

    BA

    BA2

    y

    120/80=1.5

  • 109

    5-41

    MokiaSamsang

    20052009

    Samsang

    Mokia400800Samsang250

    550Mokia

    y

    y

    (6)

  • 110

    5-42

    8

    (7)

    2040020600

    r= +0.9 -0.9

    r = +0.9

    IQGPA

    0.9IQGPA

    r

    xy

  • 111

    1. http://www.td.gov.hk/filemanager/tc/content_2015/08fig1.13c.pdf

    2. http://www.statistics.gov.hk/publication/stat_report/labour/

    B10500012010QQ01B0100.pdf

    1. http://en.wikipedia.org/wiki/H._G._Wells

    2. http://en.wikipedia.org/wiki/File:Graunt2.gif

    3. http://www.hkqf.gov.hk/ind/tc/images/common/censtd_logo.png

    4. http://hkupop.hku.hk/

    5. http://en.wikipedia.org/wiki/File:Carl_Friedrich_Gauss.jpg

    6. http://en.wikipedia.org/wiki/Pierre-Simon_Laplace

    7. http://en.wikipedia.org/wiki/William_Sealy_Gosset

    http://www.statistics.gov.hk/publication/stat_report/labour/B10500012010QQ01B0100.pdfhttp://www.statistics.gov.hk/publication/stat_report/labour/B10500012010QQ01B0100.pdf
  • 112

    (M)

    =

    =

    =

    =

    =

    ( )

    =

    =

    =

    =

    (s)

    :

    :

    () ()

    ()

    = 13 QQ

    = 2

    QQ 13

    = %100x

    s

  • 113

    : ()

  • 114

    normal distribution

    Karl F.Gauss17771855

    5

  • 115

    6-8

    6-86-8

  • 116

    population

    parameter

    2

    sample statistic

    x

    1 1

    1 1

    n N

    i i

    i i

    x x xn N

    2s 2

    2 2

    2 2

    1 1

    1 1

    1

    n N

    i i

    i i

    s x x x xn N

  • 117

    5-1

    1. (a) (b) (c) (d)

    2. 20 5 100

    3. (a)

    4. (i)

    (ii)

    (iii)

    5.

    6. (a)

    (b)

    (c)

    (d)

    7. (a)

    (b)

    (c)

  • 118

    5-2

    1. 20

  • 119

    5-4

    1. (a)

    () ()

    30 - 49 29.5 49.5 2

    50 - 69 49.5 69.5 4

    70 - 89 69.5 89.5 10

    90 - 109 89.5 109.5 8

    110 - 129 109.5 129.5 4

    130 - 149 129.5 149.5 4

    32

    (b)

    ()

    29.5 0

    49.5 2

    69.5 6

    89.5 16

    109.5 24

    129.5 28

    149.5 32

    (c) 20 100

    0

    5

    10

    15

    20

    25

    30

    35

    0 15 30 45 60 75 90 105 120 135 150 165

    ()

  • 120

    2. (a) 20

    (b)

    121140 120.5 140.5 3

    141160 140.5 160.5 8

    161180 160.5 180.5 16

    181200 180.5 200.5 9

    201220 200.5 220.5 3

    221240 220.5 240.5 0

    241260 240.5 260.5 0

    261280 260.5 280.5 1

    - 40

    (c) (d)

    (e) (i) 161180

    (16

    100% 40%40

    16)

    (ii) 922.5%181200

    (iii) 12602.5%

  • 121

    (f) 181200 = 22.5%

    (g)

    ()

    ()

    120.5 0

    140.5 3

    160.5 11

    180.5 27

    200.5 36

    220.5 39

    240.5 39

    260.5 39

    280.5 40

    23 175

  • 122

    5-5

    1.

    60

    2082000

    50

    2. (a)

  • 123

    (b) 1524

    84% 82%

    2539

    6% 7%

    40

    10% 11%

    3. (a) 144

    (b) 4 620

    4. (a)

    (b) A

    ABA

    B

    5. (a)

    (10) (1)

    3 0 1 2 2 3 5 5 6

    4 2 2 4 5 7 9 9

    5 1 1 2 3 3 9

    6 0 2 5 5 9

    7 0 4 9

    (b) 49

  • 124

    6. (a)

    (b)

    5-6

    1. (a)

    n= 29

    49.86

    , 15, = 49

    = 53

    (b) 197.3374

    14.0477

    2. (a) A

    = 8.3

    6.6, 7.4, 7.6, 7.8, 7.8, 8.0, 8.2, 8.6, 10.2, 10.8

    n = 10 () = 7.9

    = 7.8

    C = 10.3

    9.4, 9.5, 9.6, 9.8, 10.4, 10.5, 10.6, 10.8, 11.0, 11.4

    n = 10 () = (10.4 + 10.5) 2 = 10.45

  • 125

    (b) A C

    C

    A

    C

    3. = 24

    = 24 () = 25 ()

    4. 8 = 50

    5. 2

    10

    90%

    6.

    7.

    84 99

    82 96

    75 75

    63 74

    58 74

    75

  • 126

    8.. (a) A = 63.1

    B = 57.0

    C = 63.1

    b) AC

    9. (a) = 100

    = 120

    = 180

    (b)

    (c)

    10. (a) M74.5th

    17.65

    (b)

    17.60x

    7.08s

    (c) 15 x M

    11.

    (a)

    M50.5th, 13.8 ()

    M100.5th, 12 ()

  • 127

    (b)

    (c)

    13.27 11.44

    13.8 12

    4.45 7.65

    1 2s s

    12. (a) 123

    1 294x , 2 277.5x , 3 310x

    (b)

    123 292.5x

    (c) 293.83x

    123x x

    1 2 3 1 2 31 1 1 1

    3 3 3 3x x x x x x x (*)

    (*)

  • 128

    (d) x

    1 2 3

    123

    5 4 3

    12 12 12

    15 294 4 277.5 3 310

    12

    292.5

    x x x x

    x

    13. (a) ( = 101.18), = 14.5 = 14.33%

    (b) ( = 103.2), = 16.74 = 16.22%

    14. (a) M = 50.5th

    = 15.62

    (b) 34, 16-17

    = 15.86

    (c)

    )(x =15.62 , )(s = 2.67

    (CV)= 17.09%

    15. (a) ()

    1 8

    2 0 1 1 2 2 3 3 4 4 8 8 9

    3 0

    4 0

    (b) : = 21, 22, 23, 24, 28

    : = 22

    , Q2 = 23Q1= 21Q3 = 28 = 7

  • 129

    15 (c)

    16. (a)

    0, 1, 3, 6, 7, 8, 11, 12, 16, 17, 21,

    24, 32, 33, 34, 36, 65, 66, 67, 69

    (b) :

    = 69

    Q2 = 19 Q1 = 7.5 Q3 = 35 = 27.5

    (c)

    17.

    (a) = 60.5, = 61 = 6.56 (2d)

    (b) = 56.5

    () = 61

    = 65

    = 8.5

  • 130

    (c)

    , xi , fi

    46 51 45.5 51.5 48.5 4

    52 57 51.5 57.5 54.5 8

    58 63 57.5 63.5 60.5 15

    64 69 63.5 69.5 66.5 11

    70 75 69.5 75.5 72.5 2

    (d) = 60.35 = 60.7= 6.298 ~ 6.30

    (e)

    (f) 61

    (g)

    0

    2

    4

    6

    8

    10

    12

    14

    16

    45.5 51.5 51.5 57.5 57.5 63.5 63.5 69.5 69.5 75.5

  • 131

    5-7

    1 - 3

    1 2

    156 52.0 53.7

    181 60.3 61.8

    167 55.7 49

    192 64.0 67.8

    136 45.3 44.4

    152 50.7 46.8

    191 63.7 67.4

    239 79.7 81.9

    134 44.7 43.4

    116 38.7 36.6

    168 56.0 54.9

    203 67.7 72.4

    153 51.0 51.6

    150 50.0 48.2

    227 75.7 80.7

    5-7

    4

    258 829 866 870

    17.2 55.3 57.7 58.0

    1.3 14.1 22.6 20.2

    17 58 59 59

    16 62 86 59

    5

    25.51 39.20 34.91

    6. 81.9

    7. =VLOOKUP(9 , A1:K16 ,2)

  • 20 17 /18

  • 2017

  • 1

    2

    3

    4

    9

    9

    11

    Error! Bookmark not defined.18

    23

    23

    32

    33

    37

    47

    48

    49

    52

  • 57

    57

    60

    65

    69

    74

    74

    83

    88

    92

    96

    97

  • 1

    Albert Einstein18791955

    1

    1000

    100020

    100020

    10004%1000

    20456

    4%1000202191

  • 2

  • 3

    ()

    %

    100%

    %

    , 22

    7 2

    (i) ...0.31818181 22

    7

    (ii) 100%0.31818181 = 31.82%

    100%-

    ( + )

    ( )

    6-1

    460

    391

    %100460

    460391

    %100460

    69

    = 15% ()

  • 4

    1

    = =

    % %

    100%

    100%

    % %

    = ( 1 + % ), = ( 1 % )

    6-2

    1,440

    38

    36 38 1440 = 72 ()

    %1001440

    72

    = 5%

    6-3

    238015%

    = 2380 ( 1 15%)

    = 2380 0.85

    = 2800

  • 5

    2

    =

    100%

    %

    = %

    = ( 1 % )

    6-4

    $450 $180

    = ( 450 + 180 ) 70%

    = 630 0.7

    = $441

    3

    (Inflation)(Deflation)

    =

    100% ()

    = (1 + )n n =

  • 6

    6-5

    800900

    ?

    =

    100%

    = %100800

    800900

    = %100800

    100

    = 12.5% ( _________________)

    6-6

    1,0002,0003,0004,000:

    (a)

    (b)

    (a)

    %1002000

    20003000

    = 50% ()

    (b) x %

    1,000(1 + x %)3 = 4,000

    (1 + x %)3 = 4

    1 + x % = 1.5874

    x % = 58.74%

    59% ()

    59%

  • 7

    6-1

    1. $95000 $38000

    2. $80005%

    $14000

    3. $18040%

    4. 10%6

    5. 10 12

    6. 2014 2009 2017 2009

    2014 2017

    1

    7. 20% 15%

    5%

    8. 8% 8,000

    9. 11,767,000 20

    8% 20

  • 8

  • 9

    interest

    Simple Interest

    Compound Interest

    (P)(I)

    (A)

    A = P + I

    I = P r t

    1

    A P I

    P P rt

    P rt

    rt

  • 10

    6-7

    70001.5%

    7000 1.5% 1 = 105

    6-8

    8%2800

    5

    1

    2 800(1 8% 5)

    2 800(1 0.4)

    3920

    A P rt

    2 800 8% 5

    1120

    2 800 1120

    3 920

    6-9

    4.5%2760.75

    1

    2 760.75 (1 4.5% 0.5)

    (1.0225)

    2 700

    A P rt

    P

    P

    P

  • 11

    6-10

    70000

    26250.25

    70 000 0.25 2 625

    0.15

    15%

    r

    r

    6-2

    1. 500010%

    3500

    2.

    15008%

    3. 15000

    20400

    4. 2500033750

    5. 48000 12%

    0.75

  • 12

  • 13

    (Compound Interest)

    1A P r

    2

    1 1

    1 1

    1

    A P r r

    P r r

    P r

    2

    1A P r Pr

    2At

    1t

    A P r

    1.

    = (1+)

  • 14

    2.

    = [1 + ]

    2

    = 2

    r

    t2

    2

    12

    tr

    A P

    2n

    1

    ntr

    A P n

    nt =

    n

    6-1

    (n)

    1 -

    2 = 2

    4 = 4

    12 =12

    52 = 52

    365 = 365

  • 15

    A

    A = P + I

    1

    1 1

    nt

    nt

    I A P

    r P P

    n

    rP

    n

    6-11

    6-88% 2800

    5

    P = 2 800, r = 8%, n = 2, t = 5

    2 5

    1

    82 800 1

    2

    4144 68

    ntr

    A P n

    %

    .

  • 16

    6-8

    6-12

    6-770001.5%

    P = 7000, r = 1.5%, n = 4, t = 1

    4 1

    1

    1 57 000 1 1

    4

    105 59

    ntr

    I P Pn

    . %

    .

    4(1)1.5% 7 000(1 )4

    7105.59

    7105.59 7 000

    105.59

  • 17

    6-13

    6-1070000

    70966.92

    112

    4

    3

    3

    3 3

    1

    70 966 92 70 000 112

    1 0138 112

    1 0138 112

    1 0046 112

    0 055

    5 5

    ntr

    A P n

    r.

    r.

    r.

    r.

    r .

    . %

    6-13nt

    nt = 3

    nt

    nt

    6-14

    50004%

    34%1 5 000(1 ) 5151.51

    4

    ntr

    A P n

  • 18

    6-15

    123005%

    1500

    (1) logt

    (2) log logma m a

    12300 + 1500 = 13800

    2

    2

    2

    1

    513800 12 300 1

    2

    51.12195 1

    2

    5log1.12195 log 1

    2

    5%2 log(1 )

    2

    log1.121952

    5%log(1 )

    2

    2 4.66

    2.33

    nt

    t

    t

    t

    rA P

    n

    %

    %

    %

    t

    t

    t

    t

    5%

    4.8%

  • 19

    P

    1

    1

    1 1

    n

    n

    rI P P

    n

    r P

    n

    Effective Interest Rate,

    ER

    1

    100%

    1 1 100%

    n

    n

    rP P

    nER

    P

    r

    n

    ERP

    tERPA )1(

    (1 5%) 1 5%ER

    524.8%

    (1 ) 1 4.91%52

    ER

  • 20

    6-3

    1. 240003%

    (a)

    (b)

    2. 20008%

    3. 6000085694.77

    4. 9

    5. 2%

    2020.08

    6. 300003%

    (a)

    (b)

    (c)

    (d)

    7. 2%

    3%7%

    10000020

    8. (a) 1000 8%

    4

    (b)

  • 21

    9.

    2.3%

    2.2%

    10. 10000024%

  • 22

  • 23

    1

    1

    1520

    20

    ()152020

    6 %

    83453.01

    6-16

    (a) 9700

    (i) 10000

    (ii) 13000

    (iii) 21000

  • 24

    7%

    ()

    (i) 12(1)

    10 0009 325.83

    7%(1 )

    12

    (ii) 12(3)

    13 00010 544.03

    7%(1 )

    12

    (iii) 12(6)

    2100013814.83

    7%(1 )

    12

    (iii)

    (b) 5%

    r

    (i)

    1

    10 000 9 700 1

    3.09

    r

    r %

    (ii)

    3

    13 000 9 700 1

    10.25

    r

    r %

    (iii)

    6

    21000 9 700 1

    13.74

    r

    r %

    (iii) (ii)(iii)

    planned savings

  • 25

    6-17

    800

    2.6%

    6

    2.6%800 1 810.46

    12

    5

    2.6%800 1 808.70

    12

    4

    2.6%800 1 806.96

    12

    3

    2.6%800 1 805.21

    12

    2

    2.6%800 1 803.47

    12

    2.6%

    800 1 801.7312

    810.46 808.70 806.96 805.21 803.47 801.73 4 836.53

    6 5 4 3 22.6% 2.6% 2.6% 2.6% 2.6% 2.6%

    800 1 1 1 1 1 112 12 12 12 12 12

    4 836.53

    :

    (, , 2, , 1)

    : (1)

    1 , a=

    2.6%1

    12

    , r=

    2.6%1

    12

    , n=6

  • 26

    6-4

    1.

    (i) 5000 + 10000

    (ii) 17000

    (iii) 22000

    6.7%

    2.

    (i) 100000

    (ii) 6000060000

    10%

    3.

    1 0003%

  • 27

  • 28

    insurance

  • 29

    19Otto

    von Bismarck18151898

    annuity insurance

    perpetuity

    A PV

    r

    n

    PVArn

    6-18

    5000

    7%

    n = 12

    5 000 857142.86

    7% /12PV

  • 30

    6-19

    5000008%

    500 000

    8%

    12

    3 333.33

    A

    A

    6-5

    1.

    100008.5%

    2. 20000

    8.5%

    3.

    23005%

  • 31

  • 32

    lot

    dividend

    6-20

    (a) 0.8

    200

    200 0.8 200 = 160

    (b) 90

    4

    40.8 200 4 = 640

    7 7.11 90

    640 ()

    (c)

  • 33

    7 630790

    10630640

    (d) 91

    0.8

    100% 0.88%91

    retail bond

    coupon rate

    6-21

    100000

    4%5%

    100 000 4% 2 8 000

    100 000 5% 2 10 000

    100 000 10 000 8 000 118 000

  • 34

    6-6

    1. 1.051.2

    (a) 62

    (b) 5300

    (c) 59

    2. 611

    1.9

    2.11000

    (a) 10

    (b)

    3. 500002%

    3%4%

    (a)

    (b)

  • 35

  • 36

  • 37

    100000

    2000000100001000

    6-2

    2000000 10000

    100000 1000

    return

    on investment, ROI

    = 100%

  • 38

    6-3

    2000000 10000

    100000 1000

    100 000

    100% 5%2 000 000

    1000100% 10%

    10 000

    arithmetic rate of return

    geometric rate of returninternal rate of return

    1. arithmetic rate of return

    n nrrrr ,.....,,, 321

    = % 100....321

    n

    rrrr n

    6-22

    4

    6-4

    2007 2008 2009 2010

    123 145 156 159

  • 39

    2007

    2008145 123

    100% 17.89%123

    2009156 145

    100% 7.59%145

    2010159 156

    100% 1.92%156

    17.89% 7.59% 1.92%

    9.13%3

    2.

    n

    n1 2 3, , , , nr r r r 1, , ny y

    = (1 + 1)(1 + 2)(1 + 3) (1 + )

    -1

    = +1

    1

    1

    6-23

    6-22

    3 (1 17.89%)(1 7.59%)(1 1.92%) 1

    3 (1.1789)(1.0759)(1.0192) 1

    3 1.2927 1

    1.0893 1

    0.0893

    8.93%

  • 40

    3159

    1123

    3 1.2927 1

    1.0893 1

    0.0893

    8.93%

    6-24

    6-226-230.88%

    100000118000

    r

    4

    118 000 100 000 1

    4.22

    r

    r %

    4.22% 0.88%

  • 41

    3.

    5%3%5%

    Net Present Value, NPV

    6-5

    () () $

    0 15000

    1 6000

    2 6000

    5 7000

    3%

    6-6

    $

    0 15000 0

    15 00015 000

    1 3%

    1 6000

    6 0005825.24

    1 3%

    2 6000 2

    6 0005 655.58

    1 3%

    5 7000 5

    7 0006 038.26

    1 3%

  • 42

    5825.24 5 655.58 6 038.26 15 000 2 519.08NPV

    6-25

    5%7%10%

    () () $

    0 15000

    1 6000

    2 6000

    5 7000

    5%

    2 5

    6 000 6 000 7 00015 000

    1 5% 1 5% 1 5%

    1641.15

    7%

    2 5

    6 000 6 000 7 00015 000

    1 7% 1 7% 1 7%

    839.01

  • 43

    10%

    2 5

    6 000 6 000 7 00015 000

    1 10% 1 10% 1 10%

    240.33

    7%10%

    7%10%

    7%10%

    9%

    6-7

    1.

    2014 2015 2016 2017 2018

    () 1.36 2.50 3.48 3.79 4.11

    (a)

    (b)

    2. 5.6%

    6%

    3.

    2014 2015 2016 2017 2018

    () 10.41 10.90 11.39 11.88

    6%

  • 44

    4. 3

    5. LC1000023000

    6.

    () ()

    0 6000

    2 3000

    4 2000

    6 2000

    3%5%7%

    7. 6

    0 10000

    1 5000

    2 3000

    4 2000

    6 2000

    3%5%7%

    6

  • 45

    8.

    0 17000

    4 10000

    6 14000

    3%5%7%

  • 46

  • 47

    (a) 5000

    (b) 7000

    (c) 10000

    (a)

    (c)

    time value

    5000

    500070005000

    10000

    5000

    present

    value, PVdiscounted value

  • 48

    1

    ntr

    A P n

    PVfuture value, FV

    1

    1

    -nt

    nt

    FV rPV FV

    nr

    n

    6%

    (a) 5 000PV

    (b) 7 000

    6 603.77(1 6%)

    PV

    (c) 2

    10 0008899.96

    (1 6%)PV

    (c)

    6603.776%

    7000 (b)

    70006603.77

    10000 (c)8899.96

    (a) 5000

    (b) 6603.77 7000

    (c) 8899.96 10000

  • 49

    6-26

    2540000

    6.5%2540000

    2(3)

    2 540 0002 096 492.70

    6.5%(1 )

    2

    trade-in

    installment

    pre-payment scheme

    6-27

    C

    T

    6-7

    $98 $398

    $5180 $0

    12 $0 $2340

    3%

  • 50

    1 2 113% 3% 3%

    5180 98 1 1 1 112 12 12

    6 340.00

    12

    2 340 12 195

    203195398

    1 2 113% 3% 3%

    2 340 203 1 1 1 112 12 12

    4 742.86

    6-28

    3D8988

    1.

    2. 12

    4%

    : (, , 2, , 1)

    :(1)

    1 , a=1, r=(1 +

    3%

    12)1, n=12

  • 51

    8 988 95% 8 538.6

    8 988 12 749

    1 2 114% 4% 4%

    749 1 1 1 112 12 12

    8825.57

    6-29

    360 40 100

    900 100

    1530 170

    2700 300

    *

    50010040360

    333.333100)(900

    (1530 170) 6 283.33

    (2700 300) 15 200

  • 52

    depreciation

    4988

    498835003200

    straight-line

    depreciation

    accelerated depreciation

  • 53

    6-30

    T5588

    T650

    T

    T

    5 588 650 4 2 988

    6-31

    6-8

    0 1 2 3

    2340000 1990000 1640000 1290000

    0 1 2 3

    2340000 1990000 1640000 1290000

    350000 350000 350000

    1 2 3

    350 000100%

    2 340 000

    14.96%

    350 000

    100%1990 000

    17.59%

    350 000

    100%1640 000

    21.34%

  • 54

    6-32

    7-24T5588

    20%3

    3 35 588 (1 20%) 2 861.06

    6-33

    7-26

    5 588 20% 1117.6

    (5588 1117.6) 20% 894.08

    (5588 1117.6 894.08) 20% 715.26

    6-8

    1. -4588

    (a) -450

    (b) -15%

    2. 56883344

    (a)

    (b)

  • 55

    3. 218000199000

    (a)

    (b)

    (c) (a)

    (d) (b)

    4. 13800

    (i)

    (ii) 1212

    (iii) 662400

    2%

  • 56

  • 57

    loan

    monthly

    interest rate interest rate

    per annum

    12

    6-34

    500002%

    (a)

    (b)

    (a)

    50 000 (1 2%) 51000

    (b)

    650 000 (1 2%) 56 308.12

  • 58

    minimum repayment

    5%

    10%outstanding loan

    6-35

    7-283%1500

    1500

    50 000 1500 48 500

    48 500 (1 2%) 49 470

    1500

    MS Excel

    ($) ($)

    1 1500.00 49470.00

    2 1500.00 48929.40

    3 1500.00 48377.99

    4 1500.00 47815.55

    5 1500.00 47241.86

    6 1500.00 46656.70

    7 1500.00 46059.83

    49 1500.00 6571.49

    50 1500.00 5172.92

    51 1500.00 3746.38

    52 1500.00 2291.30

    53 1500.00 807.13

    54 807.13 0.00

    54

    1500 53 807.13 80 307.13

  • 59

    5%30%

    6-36

    1155000021

    31

    (i) 32

    4630%50 000 (1 ) 51925.80365

    (ii)

    18330%51925.80 (1 ) 60 350.24365

    (iii) 50000

    2295%50 000 (1 ) 51593.24365

  • 60

    mortgage loan

    prime rate, PHIBOR, H

    3%P 3%

    6-9

    2.50% $177.47 $94.27 $66.68 $52.99 $44.86 $39.51

    2.75% $178.58 $95.41 $67.86 $54.22 $46.13 $40.82

    3.00% $179.69 $96.56 $69.06 $55.46 $47.42 $42.16

    3.25% $180.80 $97.72 $70.27 $56.72 $48.73 $43.52

    3.50% $181.92 $98.89 $71.49 $58.00 $50.06 $44.90

    3.75% $183.04 $100.06 $72.72 $59.29 $51.41 $46.31

    4.00% $184.17 $101.25 $73.97 $60.60 $52.78 $47.74

    4.25% $185.30 $102.44 $75.23 $61.92 $54.17 $49.19

    4.50% $186.43 $103.64 $76.50 $63.26 $55.58 $50.67

    4.75% $187.57 $104.85 $77.78 $64.62 $57.01 $52.16

    5.00% $188.71 $106.07 $79.08 $66.00 $58.46 $53.68

    5.25% $189.86 $107.29 $80.39 $67.38 $59.92 $55.22

    5.50% $191.01 $108.53 $81.71 $68.79 $61.41 $56.78

    5.75% $192.17 $109.77 $83.04 $70.21 $62.91 $58.36

    6.00% $193.33 $111.02 $84.39 $71.64 $64.43 $59.96

    6.25% $194.49 $112.28 $85.74 $73.09 $65.97 $61.57

    6.50% $195.66 $113.55 $87.11 $74.56 $67.52 $63.21

    6.75% $196.83 $114.82 $88.49 $76.04 $69.09 $64.86

    7.00% $198.01 $116.11 $89.88 $77.53 $70.68 $66.53

  • 61

    6-37

    11000008340

    3%

    3%

    1100 000 2 75012

    1100 000 2 750 8 340 1094 410

    3%

    1094 410 2 736.0312

    1094 410 2 736.03 8 340 1088806.03

    6-38

    1797670

    2.5%

    (a)

    (b)

    (a) 1797 670

    2 5681000.7

    2 568100 (1 70%) 770 430

    (b) 6-939.51

    1797 67039.51 7102.59

    10 000

  • 62

    6-39

    5600000

    12916.4

    5600000 50%= 2800000

    R

    2 800 00012 916.4

    10 000

    46.13

    R

    R

    6-92.75%

    6-40

    4780000

    3.5%

    (a)

    (b)

    (a)

    4780000 50% = 2390000

    25

    2 390 00050.06 11964.34

    10 000

    (b)

    4780000 20% = 956000

  • 63

    20

    956 00058 5544.80

    10 000

    11964.34 + 5544.80= 17509.14

    6-9

    1. 30000

    4%3%

    () ()

    30000 1200

    2. 1560000

    3. 4280000

    17280.07

    4.

    2.75%6458.2

  • 64

  • 65

    Prime rate

    3%

    (HIBOR)

    11

    20

    1 12 20

    14

    Money Market

    Offered Rate

    20

    +(H+)

    -(P-)

    P-Plan

    https://zh.wikipedia.org/wiki/%E6%8C%89%E6%8F%ADhttps://zh.wikipedia.org/wiki/%E9%8A%80%E8%A1%8C%E5%90%8C%E6%A5%AD%E6%8B%86%E6%81%AFhttps://zh.wikipedia.org/wiki/%E7%BE%8E%E5%9C%8Bhttps://zh.wikipedia.org/wiki/%E8%81%AF%E9%82%A6%E5%9F%BA%E9%87%91%E5%88%A9%E7%8E%87https://zh.wikipedia.org/wiki/%E8%B2%A8%E5%B9%A3%E5%B8%82%E5%A0%B4
  • 66

    H-Plan (HiBOR Plan)

    ()

    H

    P+1

    6-41

    2088000

    P 2% H + 1.5%

    (a) P5%H1%

    (b) P7%H4%

    (a) 2 088 000 70% 1461600

    P 2% = 3%H + 1.5% = 2.5%2.5%

    6-952.99

    146160052.99 7 745.02

    10 000

    (b) P 2% = 5%H + 1.5% = 5.5%5%

    6-966

    146160066 9 646.56

    10 000

  • 67

    6-10

    1. 8680000

    P 1.5%

    P5.25%

    2. 3440000

    P 2%

    P 1%5%

    (a)

    (b)

    3. 5000000

    H + 1%

    P 2% (H)

    1.75% (P) 5%

    (a)

    (b)

    (c)

  • 68

  • 69

    Stress Test

    (HKSCC)

    +/-22%

    +/-100%

    A +/-10%

  • 70

    09

    (Debt Servicing RatioDSR)DSR(

    )

    DSR

    50%50%

    3 (3) DSR60%

    60%

    25

    43.6%30

    41.5%

    41.5%

    2012915DSR

    40%DSR50%25

    36.3%30

    34.5%

    DSR

  • 71

    6-42

    3700000

    250001500000

    15

    280000

    3%

    3700000 75% = 2775000

    925000+150000+280000 = 1355000 < 1500000

    277500047.4210000 = 13159.05

    13159.05 > 250000.5 = 12500

    DSR50%

    6-43

    5600000

    25 2.5%

    45000

    56000000 70% = 3920000

    392000044.8610000 = 17585.12

  • 72

    (1)

    (17585.12+0)(450000)0.5= 22500

    (2) 3% (2.5+3) = 5.5%

    25 392000061.4110000 = 24072.72

    22257.76 450000.6 = 270000

    60%

    22257.6 > 4500041.5% = 1867541.5%

    6-11

    1. 4200000

    3.5%

    188045800

    2.

    3. 6-4238000

    2.5%

  • 73

  • 74

    http://www.ird.gov.hk/

    41331

    2017/18

    salaries tax

    allowances

    deductionsnet chargeable income

    6-106-12

    = + +

    =

    =

    = +

    2000121

    2013

    1165007100

    20146 25 000 30 000

    http://www.ird.gov.hk/
  • 75

    200012

    5%

    2013117100

    5%1500

    18000

    7100 5%

    7100 30 000 5% 5%

    30 000 1500 $1500

    6-10

    2017/18

    $

    132 000

    264 000

    100 000

    100 000

    37 500

    60 46 000

    5560 23 000

  • 76

    60 46 000

    5560 23 000

    132 000

    75 000

    6-11

    2017/18

    $

    100 000

    92 000

    100 000

    18 000

    6-12

    2017/18

    $ $

    45 000 2% 900

    45 000 7% 3150

    90 000 4050

    45 000 12% 5400

    135 000 9450

    17%

    15%

  • 77

    15%standard rate

    15%15%

    provisional salaries tax

    6-44

    32 000 15444

    (a)

    (b)

    (c)

    ()

    (a) = 32 000 13 = 416 000

    (b) = 264 000

    = 100 000

    = 264 000 + 100 000 = 364 000

    (c)

    =

    = 416 000 364 000 15444 18 000

    = 18 556

  • 78

    6-45

    25 00064

    ()

    = 25 000 12 = 300 000

    = 300 000 132 000 46 000 46 000

    25 000 5% 12

    = 61 000

    45 000 = 45 000 2% = 900

    16 000 = 16 000 7% = 1120

    = (900 + 1120) 2 = 4040

    6-46

    35 00019

    5761

    ()

    = 35 000 12 = 420 000

    = 420 000 132 000 37 500

    23 000 2 46 000 2 18 000

    = 94 500

    90 000 = 45 000 2% + 45 000 7% = 4050

    4500 = 4500 12% = 540

    = (4500 + 540) 2 = 9180

  • 79

    6-47

    27 000 63 000

    25 000

    63

    11 000

    ()

    = 27 000 12 + 63 000 + 25 000 12

    = 687 000

    = 687 000 264 000 100 000 2 (46 000 2) 2

    (25 000 5% 12 + 27 000 5% 11 + 1500)

    = 7650

    7650 = 7650 2% = 153

    = 153 2 11 000 = 10 694

    10 694

    6-48

    70

    ()

    = 132 000 + 46 000 + 18 000

    = 196 000

    x

    = 9450 + (x 196 000 135 000) 0.17

    9450 > 135 000

    0.15(x 18 000)

    9450 + (x 196 000 135 000) 0.17 0.15(x 18 000)

  • 80

    9450 + 0.17x 56 270 0.15x 2700

    0.02 x 44 120

    x 2 206 000

    2 206 000

    6-49

    2 000 000

    ()

    = (2 000 000 18 000) 0.15 2 = 594 600

    http://www.gov.hk/tc/residents/taxes/etax/services/tax_computation.htm

    6-12

    1. 15 000

    (a)

    (b)

    (c)

    (d) ()

    2. 34 000

    60 5 600

    (a)

    (b)

    (c)

    (d) ()

  • 81

    3. (a) 62

    (b) 740 000

    32 000

    ()

    (c) 700012 000

    32 000

    ()

    4. 20

    ()

    5. 34 000

    28 000

    500

    ()

    6. 625717

    ()

    7. 140 000 600

    ()

    8. 45 000 30 500

    70

    11 007

    ()

    9. 210 000 150 000

    61 050

    ()

  • 82

  • 83

    rates

    1845

    1888

    http://www.rvd.gov.hk/

    ratable value

    20142015

    5%2013101

    government rent

    1997627

    1997630

    2047630

    3%1985527

    199771

    2

  • 84

    5%

    5%

    10%

    = 5% 4

    = 3% 4

    = 8% 4

    6-50

    84 000

    84 000 8% 4 = 1680

    6-51

    7-424

    ]

    1680 (1 + 5%) = 1764

    6-52

    7000

    94 300

    94 300 8% 4 3 = 628.67

    4 3

    7000 628.67 = 6371.33

  • 85

    6-53

    756

    4350

    (a)

    (b)

    (a) x

    x 8% 4 = 4350

    x = 217 500

    217500

    (b) 217 500 12 756 = 23.97

    6-13

    1. 156 500

    2. 4900

    60 000

    3. 2100

    (a)

    (b)

    4. 90 000

  • 86

    5. 452

    1600

    (a)

    (b)

    (c)

    6. 2 000 000

    3.25% 72 000

    (a)

    (b)

  • 87

  • 88

    profits

    tax

    2014/15

    16.5%15%

    15%

    6-13

    2008/09 16.5%

    15%

    =

    =

    6-54

    1 403 000 500 000

    = 1 403 000 500 000 = 903 000

    = 903 000 16.5% = 148 995

  • 89

    6-55

    420 000 240 000

    = 420 000 240 000 = 180 000

    = 180 000(1 15%) = 153 000

    6-56

    245253.9

    = 245 253.9 (1 15%) = 288 534

    = 288 534 245 253.9 = 43 280.1

    6-57

    11 000 22 500

    25 000 2000 4000

    365

    = 4000 365 = 1 460 000

    = (11 000 + 22500 1.05 + 25 000 + 2000) 12

    = 739 500

    (1 460 000 739 500) 15% = 108 075

    property tax

    15%

    =

    80% 15%

  • 90

    6-58

    5700

    5 700 12 80% 15% 8 208

    6-59

    7800

    4300

    (7 800 12 4 300) 80% 15% 2 21432

    6-14

    1. 10 000

    24 000 7000 6000

    76 200

    2. 20%

    3. 134 000 74 000

    4. 366 000

    5. 20%

    780 000

  • 91

    6. 9000

    33 000 5400 1500

    2000

    7. 8200

    1. http://en.wikipedia.org/wiki/File:Albert_Einstein_(Nobel).png

    2. http://www.rvd.gov.hk/

  • 92

    2015-2016

    13.9%2016-2017

    10%3

    .

    (a) : ()

    1.5%8.5% 6-13

    (b) :2014 ()(2 )

    100 4.25%

    (i) (ii)

    6-13 ()

    $2,000,000 1.5%

    $2,000,000 $2,176,470 $30,000 $2,000,000

    20%

    $2,176,470 $3,000,000 3%

    $3,000,000 $3,290,330 $90,000 $3,000,000

    20%

    $3,290,330 $4,000,000 4.5%

    $4,000,000 $4,428,580 $180,000 $4,000,000

    20%

    $4,428,580 $6,000,000 6%

    $6,000,000 $6,720,000 $360,000 $6,000,000

    20%

    $6,720,000 $20,000,000 7.5%

    $20,000,000 $21,739,130 $1,500,000 $20,000,000

    20%

    $21,739,130 8.5%

    $1$1

  • 93

    2. : 1 0.25%

    3. : 0.1%

    20101120()

    2010112024 (

    2010112020121027) 36(

    2012 10 27 )

    (SSD)

    () ,

    :

    6-14 ()

    20101120

    20121027

    20121027

    6 15% 20%

    612

    10% 15%

    1224

    5% 10%

    2436

    - 10%

    6-15 ()

    6-15 ()

    200 $100

    200300 1.5%

    300400 2.25%

    400600 3%

    6002,000 3.75%

    2000 4.25%

    http://www.ird.gov.hk/chi/faq/ssdexample.htm

  • 94

    6-60

    5700

    5700120.25% =171

    6-61

    20141 4267890

    (a)

    (b) 201512 4988000

    (a) 180000 + (4267890 4000000)0.2

    = 233578

    (b) 49880000.06 + 49880000.1

    = 528728

    6-15

    . 190002

    2. 20154 20 888 000

    2016119 994 000 (a)

    (b)

    (c)

  • 95

  • 96

    (PV)

    =

    (1 +

    ) = (1 +

    )

    ()

    2017/2018

    $132,000

    264,000

    ()

    100,000

    () 100,000

    () 37,500

    // ()

    60 46,000

    55 60 23,000

    // ()

    60 46,000

    55 60 23,000

    132,000

    75,000

    ()

    100,000

    92,000

    100,000

    18,000

    2017/2018

    ($) ($)

    45,000 2% 900

    45,000 7% 3,150

    90,000 4,050

    45,000 12% 5,400

    135,000 9,450

    120,000 8,400

    17%

    15%

  • 97

    6-1

    1. = 40%

    2. = 6000

    = 120000

    3. = 180 (1 + 40%) = 180 1.4 = 252

    4. 4.5

    5. = 20%

    6. 20.6%

    7. 10%

    8. 11 755

    9. 20 5 450 398

    6-2

    1. 7t

    2. 9 375P

    3. 24r %

    4. 10r %

    5. 52 320

  • 98

    6-3

    1. (a) 25 868 66A .

    (b) 1868 66I .

    2. 480

    540.47

    60.47

    3. 24r %

    4. 7 73r . %

    5. 2 000.00

    6. (a) 910 18I .

    (b) 912.48I

    (c) 913.37I

    (d) 913.60I

    7. 107 412.25A

    8. (a) 1372.79A

    (b) 1320A

    9. 2.31%

    2.22%

    10. 153 760A

    6-4

    1. (i)13446.24

  • 99

    (ii)13 950.38

    (iii)14 814.84

    (iii)

    2. (i)100 000

    (ii)114 545.45

    (i)

    3. 6 052.72

    6-5

    1. 235 294.12

    2. 1 700

    3. 1 91.67

    6-6

    1. (a) 3.63%

    (b) 3375

    (c) 30

    1605

    2. (a) 315

    10 315

    (b) 540

    3. (a) 5 4 500

    (b) 9%

  • 100

    6-7

    1. (a) 35.09%

    (b) 31.85%

    2. 7.21%6%

    3. 13.13

    4. 5.98%

    5. 23.15%

    6. 3% 279.73

    5% 141.08

    7% 521.21

    3%5%

    7. 3%1134.10

    5% 620.83

    7%151.69

    7%

    8. 3% 3 586.54

    5%1617.25

    7% 140.92

    5%7%

  • 101

    6-8

    1. (a) 2 338

    (b) 2 035.72

    2. (a) 781.33

    (b) 16.23%

    3. (a) 19 000

    (b) 8.72%

    (c) 104 000

    (d) 126 098.60

    4. (i) 13110

    (ii) 13 674.41

    (iii) 14 340.23

    6-9

    1.

    () ()

    30 000 1 200

    29 664 1186.56

    29 331.76 1173.27

    29 003.24 1160.13

    28 678.40 1147.14

    28 357.20 1134.29

  • 102

    2. 468 000

    1092 000

    3. 2.5%

    4. 1701586.13

    6-10

    1. 36 024.60

    2. (a) 2511418.74

    (b) 15 588.02

    3. (a) 3014 287

    (b) 19 795.39

    (c) 2 295 837

    6-11

    1. 15 = 21 018.06

    2. 202 940 000 58 10 000 = 17 052

    3. 2 775 000 44.86 10 000 = 12 448.65

    6-12

    1. (a) 180 000

  • 103

    (b) 169 500

    (c) 10 500

    (d)

    210

    420

    2. (a) 408 000

    (b) 339 600

    (c) 68 400

    (d) 5076

    3. (a) 656 000

    (b) 2780

    (c) 823 294.12

    4. 3 255 750

    271 312.5

    5. 436 000

    364 000

    21 050

    50 950

    2133

    6. 25 625

    7. 139 000

  • 104

    1000

    560

    8. 906 000

    692 000

    214 000

    34 753

    9. 734 550

    6-13

    1. 1956.25

    1173.75

    2. 5 300

    3. (a) 168 000

    (b) 168

    4. 6 900

    5. (a) 80 000

    (b) 14.75

    (c) 1848

    6. (a) 6 822.2

    (b) 7 302.2

    6-14

    1. 50 400

  • 105

    2. 253 030 303.03

    3. 67.70%

    4. 402 600

    5. 30 826.35

    6. 34 346.33

    7. 23 616

    6-15

    1.

    2. (a) 5677600

    (b) 4498650

    (c) 9282250 (44.44% )

    DYJ-Maths-M5-student-20170804DYJ-Maths-M6-student-20170804