Question

The mean of first 10 even natural numbers is ___

Answer 1

First 10 even natural numbers are 2,4,6,8,10,12,14,16,18,20

$\therefore \text{Mean}=\overline{x}=\frac{2+4+6+8+10+12+14+16+18+20}{10}(\text{Here n}=10)=\frac{110}{10}=11$