Question

The median of the following incomplete
frequency distribution is 4.
X1 2 3 4 5 6 7 8 Frequency 2 3 4 5 y 7 8 1 Find
the value of y:​

Answer 1

Step-by-step explanation:

Median = 4 i.e. 10th observation.

Let frequency of 5 is x.

M = [(n + 1)/2] = 10th observation

∴ [(2 + 3 + 4 + 1 + x + 1)/2] = 10

∴ 11 + x = 20

∴ x = 9.