18-09-2020
Mathematics

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

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sqdancefan sqdancefan

18-09-2020

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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