Question

find the mean
of the following data by direct method.

class
7.5-12.5,12.5-17.5
17.5 22.5 22.5-27.5 27.5-32.5

frequeney 5 10 7 8 2​

Answer 1

Answer:

5

Explanation:

when we subtract 7•5-12•5 then it comes 5