Question

The mean of a distribution is 80 and the standard deviation is 16. What is the value of variance coefficient?

A. 10%

B. 20%

C. 40%

D. 60%

1. B
2. D
3. A
4. C

Answer 1

Correct Answer - Option 1 : B

Given:

Mean distribution = 80

Standard deviation = 16

Formula Used:

Coefficient variation = (Standard deviation ÷ Mean) × 100

Calculation:

Coefficient variation = (16 ÷ 80) × 100

⇒ (1/5) × 100 = 20

∴ Variance coefficient = 20%