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Let A and B be two events defined on the sample space S of an experiment. Which of the following statements is correct?

If A and B are two disjoint events with P(A) = 0.5, P(B) = .4, then P(A ∪B) = 0.70.

If A and B are any two events with P(A) = 0.5, P(B) = .4, then P(A ∪B) = 0.9.

If A and B are any two events with P(A) = 0.5, P(B) = .4, then P(A ∩B) = 0.20.

If P(A) = 0.6, P(B) = 0.5, P(A∩B) = 0.3, then P(A/B) = 0.6.



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