Question

What is central value of a class interval? How it is obtained?

Answer 1

of a class interval is called the class mark or mid value. greater of the pair is upper class limit. Eg. 0-9; where 0 is the lower class limit and 9 is the upper class limit.

Answer 2

Answer:

of a class interval is called the class mark or mid value. greater of the pair is upper class limit. Eg. 0-9; where 0 is the lower class limit and 9 is the upper class limit.