Question

the Arithmetic mean of the first 5 odd positive integers

Answer 1

First five odd positive numbers are- 1,3,5,7,9
Mean= 1+3+5+7+9/5
=25/5
=5

Answer 2

First 5 odd positive no.=1+3+5+7+9
Mean=total Sum of observation/No. of observation
1+3+5+7+9=25
=25/5=5
Hence mean is 5
Hope it works for you