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10 cards from this deck
Events that cannot happen at same time in same experiment
AcapB=emptysetA cap B = emptysetAcapB=emptyset
Empty set (contains no elements)
Separate circles that do not overlap
P(A‾)=1−P(A)P(\overline{A}) = 1 - P(A)P(A)=1−P(A)
P(A∪B)=P(A)+P(B)−P(A∩B)P(A \cup B) = P(A) + P(B) - P(A \cap B)P(A∪B)=P(A)+P(B)−P(A∩B)
P(A∪B)=P(A)+P(B)P(A \cup B) = P(A) + P(B)P(A∪B)=P(A)+P(B)
To avoid double-counting outcomes in both events
000 (zero)
A∩B≠∅A \cap B \neq \emptysetA∩B=∅
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