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Railways PYQCBT 2 2017

RRB NTPC · Question 35

The mean of a set of data {8, 0, 3, 3, 1, 7, 4, 1, 4, 4} is:

  1. 3

  2. 3.5

  3. 3.75

  4. 3.25

Show answer & explanation

Answer: (B) 3.5

Explanation

Sum = 8 + 0 + 3 + 3 + 1 + 7 + 4 + 1 + 4 + 4 = 35. Mean = 35/10 = 3.5.