7.
The table below gives the distribution of heights of 400 female applicants for the Police
S...
Mathematics, 19.10.2020 14:01 Fairy1108789
7.
The table below gives the distribution of heights of 400 female applicants for the Police
Service
Height (cm)
Number of
Applicants
Cumulative
Frequency
151 - 155
10
10
156 - 160
55
65
161 - 165
105
170
166 - 170
110
280
171 - 175
80
360
176 - 180
30
390
181 - 185
10
400
(a)
Using a horizontal scale of 2 cm to represent a height of 5 cm and a vertical scale of
2 cm to represent 50 applicants, draw a cumulative frequency curve of the heights.
Start your horizontal scale at 150 cm.
(5 marks)
Answers: 3
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