Question

For the following distribution :

Class 0-05 5-10 10-15 15-20 20-25

Frequency 10 15 12 20 9

the sum of lower limits of the median class and modal class is

(A) 15 (B) 25 (C) 30 (D) 35

Answer 1

(B) 25

Explanation:

From the table, N/2 = 66/2 = 33, which lies in the interval 10 – 15.

Hence, lower limit of the median class is 10.

The highest frequency is 20, which lies in between the interval 15 – 20.

Hence, lower limit of modal class is 15.

Therefore, required sum is 10 + 15 = 25.

Hence, option (B) is correct