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Railways PYQCBT 1 2016

RRB NTPC · Question 68

If the standard deviation of a distribution is 4, what is the value of variance? A. 8 B. 9 C. 16 D. 12

  1. B

  2. C

  3. D

  4. A

Show answer & explanation

Answer: (B) C

Explanation

Variance = (standard deviation)² = 4² = 16.