Frequency Distribution

Frequency

Frequency is how often something occurs.

Football

Example: Sam played football on:

The frequency was 2 on Saturday, 1 on Thursday and 3 for the whole week.

Frequency Distribution

By counting frequencies we can make a Frequency Distribution table.

Example: Goals

Sam's team has scored the following numbers of goals in recent games

2, 3, 1, 2, 1, 3, 2, 3, 4, 5, 4, 2, 2, 3

Sam put the numbers in order, then added up:

frequency distribution

and wrote them down as a Frequency Distribution table.

From the table we can see interesting things such as

This is the definition:

Frequency Distribution: values and their frequency (how often each value occurs).

Here is another example:

Example: Newspapers

These are the numbers of newspapers sold at a local shop over the last 10 days:

22, 20, 18, 23, 20, 25, 22, 20, 18, 20

Let us count how many of each number there is:

Papers SoldFrequency
182
190
204
210
222
231
240
251

It is also possible to group the values. Here they are grouped in 5s:

Papers SoldFrequency
15-192
20-247
25-291

(Learn more about Grouped Frequency Distributions)

Graphs

After creating a Frequency Distribution table you might like to make a Bar Graph or a Pie Chart using the Data Graphs (Bar, Line and Pie) page.