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प्रश्न
For any two events, which formula gives the probability of their union?
पर्याय
\(P(A \cup B) = P(A) + P(B) - P(A \cap B)\)
\(P(A \cup B) = P(A)P(B)\)
\(P(A \cup B) = P(A) + P(B)\)
\(P(A \cup B) = P(A) - P(B) + P(A \cap B)\)
MCQ
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उत्तर
Adding \(P(A)\) and \(P(B)\) counts the outcomes in \(A \cap B\) twice. Subtracting \(P(A \cap B)\) gives the probability of the union.
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