Statistics Dictionary

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Venn Diagram

Statisticians use Venn diagrams to depict relationships between events in a sample space.

In a Venn diagram, the sample space is represented by a rectangle. Events within the sample space are often represented by circles within the rectangle. Here is a simple Venn diagram:

Venn diagram showing event A within sample space S

In this diagram, the blue circle represents Event A; and the area in white around the circle represents A', the complement of Event A. That is, the white space represents all of the events in the sample space that are not represented by Event A.

See also:  What is a Venn Diagram?