The difference of the upper limit of the median class and the lower limit of the modal class is

Question

Consider the data :

The difference of the upper limit of the median class and the lower limit of the modal class is

(A) 0 (B) 19 (C) 20 (D) 38

Answer 1

(C) 20

Explanation:

Here, N/2 = 67/2 = 33.5 which lies in the interval 125 – 145.

Hence, upper limit of median class is 145.

Here, we see that the highest frequency is 20 which lies in 125 – 145.

Hence, the lower limit of modal class is 125.

∴ Required difference = Upper limit of median class – Lower limit of modal class

= 145 – 125 = 20

Hence, option (C) is correct