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NDA Math Probability Part 2

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Question : 56

Total: 59

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

P( A∩ B)+P( B∩C)+P(C∩ A)
P( A∩ B)+P( B∩C)+P(C ∩ A)−P( A∩ B∩C)
P( A∩ B)+P( B∩C)+P(C ∩ A)−2P( A∩ B∩C)
P( A∩ B)+P( B∩C)+P(C∩ A)−3P( A ∩ B ∩C)

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