Question

if class mark is a frequency distribution at 10.5,17.5,31.5,38.5,45.5 then the class size is.

Answer 1

hey mate !! here's ur answers ============ ur ans is 143.5 by adding them all ....
=======hope this helps u ====

Answer 2

Answer:

⇒ the class size = 7

Step-by-step explanation:

Given data  

class mark in frequency distribution  10.5, 17.5, 31.5, 38.5, 45.5

here we need to find class size  

In frequency distribution class interval is spread uniformly

⇒ size of the class = difference between any two consecutive class marks

⇒ the class size of the given data = 17.5 - 10.5 = 7