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27 June, 07:35

Given P (E) = 0.25, P (F) = 0.45, and P (E and F) = 0.15

Find P (E or F).

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  1. 27 June, 07:40
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    P (E or F) = P (E) + P (F) - P (E and F)

    P (E or F) = 0.25 + 0.45 - 0.15

    P (E or F) = 0.70 - 0.15

    P (E or F) = 0.55

    Answer: 0.55
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