Find the mean of first 7 odd natural numbers.

Given: 

The first 7 odd natural numbers.

To find: 

We have to find the mean of the first 7 odd natural numbers.

Solution: 

First 7 odd natural numbers are: 

1, 3, 5, 7, 9, 11 and 13.

Sum of first 7 odd natural numbers $= 1 + 3 + 5 + 7 + 9 + 11 + 13$

$= 49$

Therefore,

Mean $= \frac{Sum\ of\ the\ numbers}{Total\ number\ of\ numbers}$

$= \frac{49}{7}$

$=7$

The mean of the first 7 odd natural numbers is 7.