Question

The following table shows the heights of a group of students:
Heights No. of students
140 -145 8
145-150 12
150-155 18
155-160 22
160-165 26
165-170 10
170-175 4
Use a graph paper to draw an ogive for the distribution.
Use the Ogive to find:
i) the median
ii) the inter-quartile range
iii) the number of students whose height is more than 168 cm.
iv) the number of students whose height is less than 148 cm
whoever finds it gets a cookie

Answer 1

Answer:

iii) the number of students whose height is more than 168 cm.

Answer 2

Answer:

Answer

Height (cm) Frequency of students Cumulative

140−145 12 12

145−150 20 32

150−155 30 62

155−160 38 108

160−165 24 124

165−170 16 140

170−175 12 152

175−180 8 160

Median =157

Inter quartile =164−152

Height above 172cm =12