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Probability Union, Intersection, Complement - Formula to Description (Level 1)

This math topic involves practicing the identification of probabilities concerning union, intersection, and complement events. It requires translating probability formulas into verbal descriptions. This includes determining the situations in which both events occur simultaneously (intersection: P(A)P(B)), where an event does not occur (complement: 1-P(A)), and cases capturing the union of two events where either or both occur (union: P(A) + P(B) - P(A∩B)). These problems help learners understand fundamental probability concepts associated with multiple events in an introductory setup.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Probability Union, Intersection, Complement - Formula to Description

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


This formula calculates the probability of what?

P(A)+P(B)P(AB)P(A) + P(B) - P(A\cap B)