RRB NTPC · Question 44
The mean of a distribution is 22 and the standard deviation is 10. What is the value of variance coefficient? A. 45.45% B. 35.35% C. 25.25% D. 55.55%
Show answer & explanation
Answer: (C) A
Explanation
Coefficient of variation = 10/22 × 100 ≈ 45.45%.