Question

17. Given below are heights of 15 boys of a class measured in cm:
128, 144, 146, 143, 136, 142, 138, 129, 140, 152, 144, 140, 150, 142, 154.
Find: (a) mode
(b) The median height of the boys.​

Answer 1

Answer

the data in ascending order

128,129,136,138,140,140,142,142,143,144,144,150,152,154

median

as the number of data given is 14 which is a even number so the median =

142+142/2 = 142

mode

as  the number 140, 142 and 144 occurs more than other number so the mode is 14,142 and 144

Answer 2

Answer:

138

Step-by-step explanation:

median = middle number

so, 128, 144, 146, 143, 136, 142, 138, 129, 140, 152, 144, 140, 150, 154 are totally 14 numbers

median of even number =n/2

= 14/2

= 7th place number

= 138

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