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  • Central Tendency and Dispersion (CA - CPT)
  • The mean and standard deviation of 10 observations are 45...
Multiple choice

The mean and standard deviation of 10 observations are 45 and 3, respectively. If each observation is increased by 4, the respective changed mean and standard deviation will be

  1. 45 and 3

  2. 41 and 3

  3. 49 and 3

  4. 45 and 7

  5. 49 and 7

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mean gets increased by 4.

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