Tally chart

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Relevant and up-to-date teaching resources are being moved to Tāhūrangi (tahurangi.education.govt.nz). 
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A table used to record values for a variable in a data set, by hand, often as the values are collected. One tally mark is used for each occurrence of a value. Tally marks are usually grouped in sets of five, to aid the counting of the frequency for each value.

A tally chart provides an immediate visual form of the distribution.

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 tally chart below.


 
The tally chart can then be re-drawn as the following frequency table.

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

Curriculum achievement objectives references
Statistical investigation: Levels (1), (2), (3), (4), (5), (6)