1.

If A, B, C are three events, then what is the probability that at least two of these events occur together?

A. P(A ∩ B) + P(B ∩ C) + P(C ∩ A)
B. P(A ∩ B) + P(B ∩ C) + P(C ∩ A) – P(A ∩ B ∩ C)
C. P(A ∩ B) + P(B ∩ C) + P(C ∩ A) – 2P(A ∩ B ∩ C)
D. P(A ∩ B) + P(B ∩ C) + P(C ∩ A) – 3P(A ∩ B ∩ C)
Answer» D. P(A ∩ B) + P(B ∩ C) + P(C ∩ A) – 3P(A ∩ B ∩ C)


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