Mathematical Analysis

# Frequency Distribution

Jakob Jenkov |

A *frequency distribution* of a data set counts the occurrences of each value in the data set. The number
of occurrences of a value is called the *frequency* of that value. The frequency distributions thus shows
how the values in the data set are distributed.

## Frequency Distribution Example

Let me show you a frequency distribution example to help illustrate what it looks like. First, here is an example data set:

1,1,1,2,2,3,3,6,6,8,9,9,10

The frequency distribution of this data set looks like this:

Value | Frequency |
---|---|

1 | 3 |

2 | 2 |

3 | 2 |

6 | 2 |

8 | 1 |

9 | 2 |

10 | 1 |

## Visualizing Frequency Distributions With Histograms

You can visualize a frequency distribution with a historgram. Here is a histogram showing the frequency distribution of the example data set:

Next: Mean Deviation

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Jakob Jenkov |