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Probability Basicsmedium
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If P(A∪B)=0.9P(A \cup B) = 0.9P(A∪B)=0.9 and P(A∩B)=0.2P(A \cap B) = 0.2P(A∩B)=0.2, what is the sum P(A)+P(B)P(A) + P(B)P(A)+P(B)?