Question

find the arthmetic mean of first five odd natural numbers​

Answer 1

Answer:

Hence the mean of first five odd natural numbers is 5.

Answer 2

Consider the mean of the first five odd natural numbers,

$avg = \frac{1 + 3 + 5 + 7 + 9}{5} \\ = \frac{25}{5} \\ = 5$

The idea is the sum of first n odd number is n2, for find the Average of first n odd numbers so it is divide by n, hence formula is n²/n

Hence, this is the answer.