Question

If the class mark of a frequency distribution are 29.5,36.5,43.5,50.5 then find the class interval coresponding to the class mark 36.5

Answer 1

First you have to see that by subtracting two consecutive frequency so what is our answer for example- 36.5-29.5=7 then we will do the half of the answer like this 7/2=3.5

Therefore the class interval would like to be - 36.5+3.5=40

36.5-3.5=33

So the class interval would like to be 33-40

If I am having any mistake forgive me