Question

Weight of the students in a class is represented in a grouped frequency.

Weight (Kg)	Frequency (No. of students)
50 - 60	25
60 - 70	21
70 - 80	11

What is the Greater than type cumulative frequency of group having 25 frequency ?

• A. 25
• B. 11
• C. 57
• D. 75

Answer 1

The correct option is C 57

The progressive sum of the frequencies from the last class to the lower boundary of the particular data class is the Greater than Cumulative Frequency.

For example:-

Weight (Kg)	Frequency (No. of students)	Cumulative Frequency
50 - 60	25	32 + 25 = 57
60 - 70	21	11 + 21 = 32
70 - 80	11	11 + 0 = 11

The progressive sum of the frequencies from the last class 70 - 80 to lower boundary 50 of the particular data class 50 - 60 is 57, so 57 is the Greater than Cumulative Frequency of group having 25 frequency.