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10 questions from this quiz
A set with no elements at all
As a rectangle
"or"
"and"
All elements in ε\varepsilonε not in AAA
When A∩B=∅A \cap B = \varnothingA∩B=∅
Pr(A∪B)=Pr(A)+Pr(B)−Pr(A∩B)\text{Pr}(A \cup B) = \text{Pr}(A) + \text{Pr}(B) - \text{Pr}(A \cap B)Pr(A∪B)=Pr(A)+Pr(B)−Pr(A∩B)
With the intersection and work outward
310\frac{3}{10}103
Adding Pr(A)\text{Pr}(A)Pr(A) and Pr(B)\text{Pr}(B)Pr(B) counts the intersection twice
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