Suppose that P(A) = 0.4, P(B) = 0.3 and P((A ∪ B)C) = 0.42. Are A and B independent?

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Suppose that P(A) = 0.4, P(B) = 0.3 and P((A ∪ B)C) = 0.42. Are A and B
independent?

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