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"Either/Or" Probability for Overlapping Events in a Venn Diagram

"Either/Or" Probability for Overlapping Events in a Venn Diagram

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Author: Ryan Backman
Description:

Calculate an "either/or" probability for overlapping events in a Venn diagram.

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Tutorial
Terms to Know
Either/Or Probability for Overlapping Events

The probability that either of two events occurs is equal to the sum of the probabilities of the two events, minus the joint probability of the two events happening together.  Also known as the "General Addition Rule".

Formulas to Know
Either/Or Probability for Overlapping Events

P left parenthesis A space o r space B right parenthesis space equals space P left parenthesis A right parenthesis space plus thin space P left parenthesis B right parenthesis thin space minus space P left parenthesis A space a n d space B right parenthesis