If the mean of 4 observations is 20, when a constant ‘c’ is added to each observ – OfficerPath

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MCQ Practice

If the mean of 4 observations is 20, when a constant 'c' is added to each observation, the mean becomes 22. The value of c is :

Subject: MathematicsTopic: Average

A

6

B

- 2

C

2

D

4

Correct Answer: C

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