Frequency table

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Any table that displays the frequencies of values of one or more variables in a data set.

For a whole-number variable in a data set, a table showing each value of the variable and its corresponding frequency.

For a measurement variable in a data set, a table showing a set of class intervals for the variable and the corresponding frequency for each interval.

For a category variable in a data set, a table showing each category of the variable and its corresponding frequency.

A frequency table will often have an extra column that shows the percentages that fall in each value, class interval or category.

See: one-way table, two-way table
 
Example

The number of days in a week that rain fell in Grey Lynn, Auckland, from Monday 2 January 2006 to Sunday 31 December 2006 is recorded in the frequency table below.

Number of days with rain Number of weeks
0
1
2
3
4
5
6
7
2
5
5
5
19
6
6
4
Total 52

A frequency table with more information is shown below.

Number of days with rain, x Number of weeks Percentage Percentage of weeks with x or fewer days of rain
0
1
2
3
4
5
6
7
2
5
5
5
19
6
6
4
3.8%
9.6%
9.6%
9.6%
36.5%
11.5%
11.5%
7.7%
3.8%
13.5%
23.1%
32.7%
69.2%
80.8%
92.3%
100.0%
Total 52    

Curriculum achievement objectives references
Statistical investigation: Levels (3), (4), (5), (6), (7), (8)
Probability: Levels (3), (4), (5), (6)