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Thread: Homework Question

  1. #1
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    Homework Question




    P(high-quality oil)= .50
    P(medium-quality oil) = .20
    P(no oil) = .30

    a) what is the probability of finding oil? I know the answer to this, it is .7, or 70%

    b) after 200 feet of drilling the first well, a soil test is taken. The probabilities of finding the particular type of soil identified by the test follow

    P(soil|high quality oil) = .20
    P(soil|medium quality soil)=.80
    P(soil|no oil)=.20

    I am pretty sure I am supposed to use Baye's theorem to solve the problem

    event A = particular soil type
    event B = particular oil type

    For high quality soil probability, I got .2

    I know it is kind broad, but, is my answer correct?

  2. #2
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    Re: Homework Question


    What exactly is the qestion in part b?

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