The mean and standard deviation of 75 observations are 45 and 10,…

2023

The mean and standard deviation of 75 observations are 45 and 10, respectively. If 2 is added to each observation, the new mean and standard deviation will be

Answer: C. 47, 10

  1. A.

    47, 12

  2. B.

    47, 14

  3. C.

    47, 10

  4. D.

    46, 12

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Correct answer: C

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