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The mean of n items is bar(x). If the fi...

The mean of n items is `bar(x)`. If the first item is increased by n, second by `n-1` and so on and last by 1, then the new mean is

A

`barx+(n(n+1)(2n+1))/(6)`

B

`barx+((n+1)(2n+1))/(6)`

C

`barx+(n+1)/(2)`

D

`barx+((n+1))/(4)`

Text Solution

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The correct Answer is:
C
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