# Quick Math Mean- Statistics

## Quick Math Mean

1
##### Enter expression in this form

Example (dataset):  5,   7,   8,   9  10

Enter dataset separated by a comma

### Mean in Statistics

The mean is a measure of central tendency, often referred to as the “average” of a set of values. It is calculated by summing all the values in a dataset and then dividing by the number of values. The mean provides a single value that summarizes the general magnitude of the data.

#### Formula

For a dataset with values $$x_1, x_2, x_3, \ldots, x_n$$, the mean $$\bar{x}$$ is given by:

$\bar{x} = \frac{x_1 + x_2 + x_3 + \ldots + x_n}{n}$

where:
– $$x_1, x_2, x_3, \ldots, x_n$$ are the individual data points.
– $$n$$ is the total number of data points.

#### Example

Let’s consider the following dataset representing the scores of students in a math test:

$75, 80, 85, 90, 95$

To find the mean score:

1. Sum the values:

$75 + 80 + 85 + 90 + 95 = 425$

2. Count the number of values:

There are 5 values in the dataset.

3. Calculate the mean:

$\bar{x} = \frac{425}{5} = 85$

So, the mean score of the students in the math test is 85.

This example illustrates how to calculate the mean and provides a simple, clear process for summarizing a set of data with a single representative value.