Question

If the class mark is 10 and class width is 6 then find the class​

Answer 1

given that xi = 10 => (l + h) /2= 10

=> l + h = 20 .....(1)

also class width = 6

=> h -l = 6 ......(2)

from (1) and (2)

2h = 26 => h = 13

=> l = 7

hence , class is 7 - 13

Answer 2

Answer:

We have, class mark = 10 and class width = 6.

Since, 6/2=3

The lower class limit = 10−3=7 and the upper class limit = 10+3=13.

So, the class is 7-13.