Question

How to find first 10 odd numbers average?

Answer 1

First odd numbers :1 3 5 7 9 11 13 15 17 19
$\frac{1+3+5+7+9+11+13+15+17+19}{10}$
=10

Answer 2

First 10 odd numbers are -
1,3,5,7,9,11,13,15,17,19

Average = sum of observation/number of observation

=1+3+5+7+9+11+13+15+17+19/10
=100/10
10