A Venn diagram gets unwieldy with a large number of observations.
It is impossible (in 2-d) to have more than three categories (circles).
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John Venn
july1880
Venn diagrams were conceived around 1880 by John Venn.
If ur doing a project it organizes ur work for u
Venn diagrams are used for comparing more that two items in a chart. A Venn diagram compares like possibilities of a group of related objects or things. A family tree is a type of Venn diagram.