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Railways PYQCBT 1 2016

RRB NTPC · Question 16

If the standard deviation of a population is 8, what will be its variance? A. 64 B. 16 C. 32 D. 24

  1. C

  2. D

  3. B

  4. A

Show answer & explanation

Answer: (D) A

Explanation

Variance = (standard deviation)² = 8² = 64.