The distribution of heights (in cm) of 96 children is given below :
Height (in cm) | Number of children |
124-128 128-132 132-136 136-140 140-144 144-148 148-152 152-156 156-160 160-164 |
5 8 17 24 16 12 6 4 3 1 |
Draw a less than type cumulative frequency curve for this data and use it to compute median height of the children.
Answer. [139]
Solution.
Height | Number of children |
less than 124 less than 128 less than 132 less than 136 less than 140 less than 144 less than 148 less than 152 less than 156 less than 160 less than 164 |
0 5 13 30 54 70 82 88 92 95 96 |
Hence the median is = 139