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Railways PYQCBT 1 2016

RRB NTPC · Question 36

The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?

  1. 16.66%

  2. 66.66%

  3. 33.33%

  4. 100%

Show answer & explanation

Answer: (C) 33.33%

Explanation

Coefficient of variation = SD/mean × 100 = 7/21 × 100 ≈ 33.33%.