An element that is contained in two ... (of sets) (∩)On a Venn diagram, the region where sets overlap. 𝑷∩𝑸 is the intersection of set 𝑷 and set 𝑸. 𝑷∩𝑸 = {elements in ...

Venn diagrams are used to sort sets of data. The probability of an event not happening uses the complement of the region on the Venn diagram. Count the number of elements in each region.