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If \(P(A)=0.4\), \(P(B)=0.7\), and events \(A\) and \(B\) are independent, what is \(P(A\cap B)\)?

Answer and explanation

Correct answer: 0.28

For independent events, the probability of their intersection is \(P(A\cap B)=P(A)\times P(B)\). Thus, \(P(A\cap B)=0.4\times0.7=0.28\). Therefore, 0.28 is correct. The value 0.40 is only \(P(A)\), not the probability that both events occur. Exam tip: When events are independent and the question asks for both events, multiply their probabilities.

Related tags

ProbabilityIndependent EventsEvent IntersectionClass 10 MathematicsMultiplication RuleSimple Problems To Find The Probability Of A Specific Event OccurringMathematicsClass 10 Mcq

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