Question

Find the mean of first five multiples of 5. [2 MARKS]

Answer 1

Formula: 1 Mark
Solution: 1 Mark

First five multiples of 5 are 5,10,15, 20 and 25.

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

$\text{Mean}=\frac{5+10+15+20+25}{5}=15$