mr hardknuckles’ class
Post on 05-Jan-2016
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Mr Hardknuckles’ Class
How tall are they ?
Mr Hardknuckles recorded the heights of students in his class. These are the results. (Heights are in
cm)
164, 171, 152, 165, 147, 153, 158, 161, 155, 168, 162, 173, 149, 167,166, 155, 163, 174, 148, 151, 142, 162, 181, 154, 139, 167, 143, 165, 153.
Draw a Frequency Table for this data.
Write these numbers into your book.
Frequency Table
Score Tally Frequency
164, 171, 152, 165, 147, 153, 158, 161, 155, 168, 162, 173, 149, 167,166, 155, 163, 174, 148, 151, 142, 162, 181, 154, 139, 167, 143, 165, 153.
130 -
140 -
150 -
160 -
170 -
180 -
1
5
9
11
2
1
Draw a Histogram
In a histogram the bars touch each other.
130 140 150 160 170 180
SCORE
10
8
6
4
2
0
12
FRE
QU
EN
CY
Max = _________
Min = ________
Range = ________
Modal class = ________
Median = ________
Mean = ________
181
139
42
160 - 169
161
4608 29 158.9
Middle when ranked
Biggest group
Highest score
Lowest score
Max - Min
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