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8 April, 07:11

Events A and B are mutually exclusive, with P (A) = 0.65 and P (B) = 0.14.

What is P (A or B) ?

A.

0.091

B.

0.215

C.

0.51

D.

0.79

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Answers (1)
  1. 8 April, 08:28
    0
    Answer: 0.79, D

    Work:

    The value of the probability of (A or B) when A and B are mutually exclusive is equal to P (A) + P (B). There is no need to subtract the P (A and B) because the events are mutually exclusive which means that they never overlap and P (A and B) is therefore equal to 0. The answer is then 0.65 + 0.14 which equals 0.79, which is the answer.
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