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Thread: Check Answers - Probabilities

  1. #1
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    Post Check Answers - Probabilities

    An experiment has a sample space of 7 elements, x1, x2, x3 ..... x7. The probabilities are listed below.
    x1 - 0.12 x2 - 0.31 x3 - 0.08 x4 - 0.11 x5 - 0.21 x6 - 0.04 x7 - 0.13

    Let A = {xk| k is even}
    B = {xk | k >= 5}
    C = {xk | k < 4} and
    D = {Xk | k = 2, 4, or 7}

    Calculate the following probabilities: P(A), P(B), P(C), P(D), P(B U C) - (read as probability of B union C), P(A n B) - (read as probability of intersection of A and B), P(D^c) - (read as complement of D), P(A U C^c) - (read as probability of A union complement of C)


    My answers: P(A) = .46 P(B) = .38 P(C) = .51 P(D) = .55 P(B U C) = .89 P(A n B) = .04 P(D^c) = .45 P(A U C^c) = .80
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  2. #2
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    Re: Check Answers - Probabilities

    all correct
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