Answer :

First we’ll find the median class -

And median class is the class corresponding to cumulative frequency which is just greater than m.


And c.f just greater is 122 corresponding to 16 - 24 (median class)

Where, l = lower limit of median class, N = sum of all frequencies, C = cumulative frequency of class preceding to median class, h = size of median class, f = frequency of median class.

here l = 16, N = 157, C = 72, h = 8 and f = 50.

Median = 17.04

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