Question

Find the class size of the class intervals 0-4, 5-9, 10-14, ....

Answer 1

class size = upper limit -lower limit +1
4-0 +1=5
9-5 +1=5
14-10 +1 =5

so vlass size is 5

Answer 2

i am finding class size of 1st interval :-
upper limit =>4 ; lower limit => 0
class size => upper limit - lower limit
= 4 -0
ans=4
hey friend you can can find any of the interval , answer will be same