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The weighted mean of first n natural num...

The weighted mean of first n natural numbers whose weights are equal to the squares of corresponding numbers is :

A

`(n + 1)/(2)`

B

`(3n (n + 1))/(2(2n + 1))`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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