Question

If 25&35 are two consecutive class mark of two successive class interval find the size of the class

Answer 1

Step-by-step explanation:

Size of class = 35-25= 10

Answer 2

If two consecutive class marks are 25 and 35 of two successive class intervals, then the class size is

30

Explanation:

Upper limit (u) = 35

Lower limit (l) = 25

Class Mark = ( u + l) / 2

= ( 35 + 25) / 2

= 60 / 2

= 30