In a set of 2n distinct observation, eac...

In a set of 2n distinct observation, each of the observation below the median of all the observations is increased by 5 and each of the remaining observations is decreased by 3. Then the mean of the new set of observations:

A

increase by 1

B

decrease by 1

C

decrease by 2

D

increase by 2

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The correct Answer is:

A

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