Question

Find the mean of the following data.

4

5

6

7

8

3

• A. 5.5
• B. 5
• C. 6

Answer 1

The correct option is A 5.5

We know,

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

$=\frac{4+5+6+7+8+3}{6}$
$=\frac{33}{6}$
$=5.5$

Hence, the mean of the given data points is $5.5$.

$\underset{–}{\text{Note:}}$ We can see that the mean, $5.5$ is between the maximum $\left(8\right)$ and minimum $\left(3\right)$ values of the given data set, and the mean $5.5$ is NOT one of the data points of the given data set $\{3,4,5,6,7,8\}$. But it may be possible that the mean is one of the entries of the data set.