What are mutually exclusive events? They are events that cannot happen at the same time, like rolling an even number and rolling a five on one roll of a die. Mutually exclusive, or disjoint, events have a joint probability of zero: P(A ∩ B) = 0. AP Statistics, topic 2.5.
Sources
College Board, AP Statistics Course and Exam Description. AP Central, 2020.
Cited for: Topic 2.5: joint probability as the probability of the intersection, P(A ∩ B), and mutually exclusive, or disjoint, events, which cannot occur at the same time and for which P(A ∩ B) = 0
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