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23 March, 03:15

Let P (A) = 0.27, P (B) = 0.58, P (A and B) = 0.21

Find the probability that either A or B will occur.

Give answer to the hundredth place. (Example 0.87)

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  1. 23 March, 03:32
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    Answer: 0.64

    Work Shown:

    P (A or B) = P (A) + P (B) - P (A and B)

    P (A or B) = 0.27 + 0.58 - 0.21

    P (A or B) = 0.64
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