Mean (Average) Calculator

Calculating Mean (Average): An Example

Consider the following test scores from a math quiz: 82, 70, 95, 88, 75

The mean, \( \bar{x} \), is obtained by adding all the values together and dividing by the total number of values. For this dataset:

$$ \bar{x} = \frac{1}{n} \sum_{i=1}^{n} x_i = \frac{x_1 + x_2 + x_3 + x_4 + x_5}{5} = \frac{82 + 70 + 95 + 88 + 75}{5} = \frac{410}{5} = 82 $$

Therefore, the mean math quiz score is \( \bar{x} = 82 \).