Question

Find the mean of the following data:
$87,92,63,78,92,59,72,69.$

• A. $70.13$
• B. $76$
• C. $76.5$
• D. $79$

Answer 1

The correct option is C $76.5$

Given data is: $87,92,63,78,92,59,72,69$.

We know, Mean is given by,

$\text{Mean}=\frac{\text{Sum of the elements}}{\text{Total number of elements}}$.

Here, number of observations $=8$.

$⟹\text{Mean}=\frac{87+92+63+78+92+59+72+69}{8}=\frac{612}{8}=76.5$.

Therefore, option $C$ is correct.