Question

The mean of first n natural numbers is

Answer 1

SOLUTION :-

Mean of first 'n' natural numbers = ?

First 'n' natural numbers = 1 , 2 , 3 , 4 , 5 , 6 , 7 , .................n

$mean \: = \frac{1 + 2 + 3 + .......n}{n}$

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

$\frac{n + 1}{2}$