Question

Find the mean of first five multiples of 4.

Answer 1

First five multiples of 4 are 4,8,12, 16, and 20.

$\text{Mean}=\frac{\text{Sum of all observations}}{\text{Total number of observations}}$

$\text{Mean}=\frac{4+8+12+16+20}{5}=\frac{60}{5}=12$