The Ministry is migrating nzmaths content to Tāhurangi.
Relevant and up-to-date teaching resources are being moved to Tāhūrangi (tahurangi.education.govt.nz).
When all identified resources have been successfully moved, this website will close. We expect this to be in June 2024.
e-ako maths, e-ako Pāngarau, and e-ako PLD 360 will continue to be available.
For more information visit https://tahurangi.education.govt.nz/updates-to-nzmaths
A graph for displaying the distribution of a numerical variable in which each dot represents each value of the variable.
For a whole-number variable, if a value occurs more than once, the dots are placed one above the other so that the height of the column of dots represents the frequency for that value.
Dot plots are particularly useful for comparing the distribution of a numerical variable for two or more categories of a category variable by displaying side-by-side dot plots on the same scale. Dot plots are particularly useful when the number of values to be plotted is relatively small.
Dot plots are usually drawn horizontally, but may be drawn vertically.
Example
The actual weights of random samples of 50 male and 50 female students enrolled in an introductory Statistics course at the University of Auckland are displayed on the dot plot below.
Alternative: dot graph, dotplot
Curriculum achievement objectives references
Statistical investigation: Levels (3), (4), (5), (6), (7), (8)
