Question

13. Find the class size of the class 15 - 20.​

Answer 1

Answer:

Class size is equal to upper limit - lower limit

Therefore the size of the class is 20-15= 5

Answer 2

It is given by ,

♠a= lower limit

♠b= upper limit.

Therefore , the class size and class mark of class is,

b-a = 20-15 = 5

Hope it helps you...