Diagram in the form of a
circle in which each modality of a
distribution of the data of a qualitative statistical variable occupies one
sector of the
circle (identified by a percentage or a fraction) where the area is proportional to the
frequency of the
modality.
Example
Here is some data we gathered by surveying students in a class to find out the number of brothers and sisters in each family.
![diagramme_circulaire](https://media.scolab.com/Illustrations/Lexique/v5%20-%202/diagramme_circulaire_en.svg)
These data are represented on the right in a circle graph.
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![](https://www.netmaths.net/medias_collection/Illustrations/Math%20Objects/Glossary_primary_pie_chart_diagram.svg) |