Question

what is the mean of the first 10 odd natural numbers

Answer 1

first 10 odd natural numbers are

1 3 5 7 9 11 13 15 17 19

mean = ∑ x / n

=100/ 10

=10

Answer 2

mean =sum of observations/no. of observations
=1+3+5+7+9+11+13+15+17+19/10
=100/10
=10

hope it helps..