Question

calculate the mean of first ten even numbers

Answer 1

$2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 \div 10 \\ \\ 110 \div 10 = 11is the mean$

Answer 2

First ten even numbers= 2,4,6,8,10,12,14,16,18,20

Mean= sum of observations / number of observations
= 122/10
=12.2