Question

Weight (in Kg) of the students in a class is represented in a ungrouped frequency distribution table.

Weight (Kg)	Cumulative Frequency
30	21
35	17
40	12
45	5
50	2

What is the frequency of the data value of 45 ?

• A. 5
• B. 3
• C. 7
• D. 2

Answer 1

The correct option is B 3

In this case greater than type cumulative frequency is given, we have to find the frequency of the particular data value 45.

Weight (Kg)	Cumulative Frequency	Frequency
30	21	21-17=4
35	17	17-12=5
40	12	12-5=7
45	5	5-2=3
50	2	2-0=2

Hence, frequency of the data value 45 is 3.