Railways PYQCBT 1 2016

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%

  1. B

  2. C

  3. A

  4. D

Show answer & explanation

Answer: (C) A

Explanation

Coefficient of variation = 10/22 × 100 ≈ 45.45%.