MathematicsMean of first ‘n’ natural numbers is

Mean of first ‘n’ natural numbers is

A
$\frac{n - 1}{2}$
B
$\frac{n + 1}{2}$
C
$\frac{n (n + 1)}{2}$
D
$\frac{n (n - 1)}{2}$

Solution:

Mean of first ‘n’ natural numbers

= \frac{n (n + 1)}{2 n} = \frac{n + 1}{2}

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