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26 February, 19:38

Find the probability of the indicated event if p (e) = 0.20 and p (f) = 0.55. find p (e and f) if p (e or f) equals=0.65

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  1. 26 February, 19:59
    0
    Using relationship

    P (E or F) = P (E) + P (F) - P (E and F)

    Substitute

    0.65=0.20+0.55-P (E and F)

    solve for

    P (E and F) = 0.20+0.55-0.65=0.10
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