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Railways PYQCBT 1 2016

RRB NTPC · Question 4

The mean of a distribution is 10 and the standard deviation is 5. What is the value of variance coefficient? A. 50% B. 100% C. 150% D. 200%

  1. D

  2. A

  3. B

  4. C

Show answer & explanation

Answer: (B) A

Explanation

Coefficient of variation = (standard deviation ÷ mean) × 100 = 5/10 × 100 = 50%.