Question

class mark class interval is?

Answer 1

Class interval is when we want to present a large data more meaningfully, we divide it into various groups with minimum and maximum values. Eg: 16 - 25, 26 - 35 etc.

Class mark is the mid - value of a class/class interval.

That is: Upper Limit + Lower Limit/2

Eg: Let's find the class mark of interval 15 - 25

Upper Limit: 25

Lower Limit: 15

25 + 15/2

= 40/2

= 20

Hope it helps :)