Question

For the data $0,2,3,5,9,2$ and $-7$

Mean$=$_______.

Answer 1

The formula for finding the mean is

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

The given data is $0,2,3,5,9,2,-7$

Here, number of observations $\left(n\right)=5$

Therefore,

$$\begin{gathered} \text{Mean=}\frac{0+2+3+5+9+2+(-7)}{7} \\ =\frac{21-7}{7} \\ =\frac{14}{7} \\ =2 \end{gathered}$$

Hence, the mean of the given data is $2$.