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astra-53 [7]
3 years ago
5

Calculate P(A or B) where A and B are mutually exclusive events and P(A) = 1 and P(B) =

Mathematics
1 answer:
34kurt3 years ago
3 0

Answer:

  1

Step-by-step explanation:

If A and B are mutually exclusive and A is certain to happen, then B is certain to never happen, so P(B) = 0. The probability of either of two mutually exclusive events is the sum of their individual probabilities:

  P(A or B) = P(A) +P(B) = 1 + 0

  P(A or B) = 1

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