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10 questions from this quiz
Between 0 and 1
SSS
P(E)=n(E)n(S)P(E) = \frac{n(E)}{n(S)}P(E)=n(S)n(E)
Event occurs half the time
P(A∪B)=P(A)+P(B)−P(A∩B)P(A ∪ B) = P(A) + P(B) - P(A ∩ B)P(A∪B)=P(A)+P(B)−P(A∩B)
Elements in both sets simultaneously
000
P(A)+P(A′)=1P(A) + P(A') = 1P(A)+P(A′)=1
f=pnf = \frac{p}{n}f=np
Union (∪)
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