Question

Q4. Consider the class interval 30-40 and 40-50 ,the number 40 will be included in the class interval, a ) 30-40 b ) 40-50 c ) both a and b d ) none

Answer 1

i thought option b is right

Answer 2

Answer:- (b)

               It will include in 40-50 not in 30-40 because always the upper limit include in the next class interval.