Question

Mean deviation of 5 observations from their mean 3 is 1.2, then coefficient of mean deviation is

• A. 0.24
• B. 0.4
• C. 2.5
• D. None of these

Answer 1

The correct option is B 0.4

Coefficient of mean deviation of the given dist. is $=\frac{\text{Deviation}}{\text{mean}}=\frac{1.2}{3}=.4$