Section 1.2:

It could be numbers like phone #, social security #, # on the jersey of football players, but these # are considered LABELS

Copy table, use ID as straightedge

Leave space after each part to write

your answer.

1a)Identify the contents of each data set

One data set contains names of cities and the other contains city populations

Decide whether each data set consists of numerical or non-numerical entries

City Names: Non-numericalentriesPopulation: Numericalmeasurements

1b)

1c) City Names : Qualitative Population: Quantitative

Copy this in your notesLEVELS OF MEASUREMENT

(LOWEST TO HIGHEST)1) NOMINAL2) ORDINAL3)INTERVAL

4) RATIO

EsExample

Leave a space after each part 1a), 1b), 2a) and 2b) toWrite your answer.

1a)1b)

2a)2b)

1 a) The final standings represent a ranking of basketball teams.1b) Ordinal data because it can be put in order.

ANSWER

2a) The collection of phone # represent labels. NO meaningful mathematical computations can be made.

2b)Nominal data because you cannot make calculations on the data.

ANSWER

What mathematical computation is meant by“difference “

What is meant by “multiples” “ratio”

What mathematical computation is meant by“difference “

What is meant by “multiples” “ratio”

SUBTRACTION

2 AND 3 ARE MULTIPLES OF 6 BECAUSE 2 TIMES 3 = 6

SIMILARLY THE RATIO 6/2=3 6/3=2

Also check the following:Does a zero in your data computation has meaning

and implies "none" then it is an inherent zero!!!

1a)1b)

2a)2b)

a) The data set is a collection of temperaturesb) Interval level of measurement because the data can be ordered and meaningful differences can be calculated, but it does not make sense writing a ratio using the temperatures. Data set does NOT contain an inherent Zero, 0 degrees Celsius/Fahrenheit has no meaning, since heat is still present at this temperature. The zero degree simply means a position on the Celsius or Fahrenheit scale.

a)The data set is a collection of heart ratesb) Ratio level of measurement because the data can be ordered, can be written as a ratio, you can calculate meaningful differences, and the data set contains an inherent zero.

REQUIRED NOTES!!!Use a straight edge to copy this table verbatim!!

Copy from your textbook. Highly recommended to add to your notes, but it is not required

Open textbook, we will do these in class orally.

1. Nominal and Ordinal

2. Ordinal, interval and ratio

3. False. Data at the ordinal level can be qualitative or quantitative

4. False. For data at the interval level, you can calcultate meaningful differences between data entries. You cannot calculate meaningful differences at the nominal or ordinal level.

5. False. More types of calculations can be performed at the interval level than with data at the nominal level.6. False. Data at the ratio level can be placed in meaningful order

ANSWERS TO 1-6

EVEN ANSWERS

8) Quantitative, because carrying capacities are numerical measurements10) Qualitative, because student ID numbers are labels12) Qualitative, because mammal species are labels14)Quantitative, because wait times are numerical measurements

ODD ANSWERS

• GET YOUR LAPTOP AND OPEN PEARSON WEBSITE

• OPEN YOUR e-Textbook• GO TO SECTION 1.2, PAGE 13

• CLICK WORLD ARROW

HW PACK 1 ASSIGNMENT 3 SECTION 1.2 (ONLINE)