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Math Help - Probability

  1. #1
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    Probability

    Hi to all
    Could anybody help me
    Probability-problem-8.jpg
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  2. #2
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    Mutually exclusive is important it tells us that they are disjoint events.

    P(A or B) = P(A) + P(B)=.3+.5

    P(A and ~B)=P(A)*P(~B)=P(A)*(1-P(B))=.3(1-.5)=.15

    P(A and B)=P(A)*P(B)=.3*.5=.15
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