Question

4.
Construct the cumulative frequency distribution of the following distribution and find the median class
Class 12.5 - 17.5 17.5 - 22.5 22.5 - 27.5 27.5 - 32.5 32.5 - 37,5
Frequency 2 22 19 14 1
13

Answer 1

Here, N = 70

Rightarrow N 2 =35

The cumulative frequency just greater than N / 2 = 35is

43 and the corresponding class is 22.5 - 27.5.

Median Class is 22.5- - 7.5

Explanation:

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