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10 questions from this quiz
Elements common to both AAA and BBB
Elements in AAA or BBB (or both)
A∩BA \cap BA∩B
P(A)+P(B)−P(A∩B)P(A) + P(B) - P(A \cap B)P(A)+P(B)−P(A∩B)
P(A′)=1−P(A)P(A') = 1 - P(A)P(A′)=1−P(A)
A∩BA \cap BA∩B is counted twice
0.875
5
It's subtracted three times
69
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