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    Probability, Bayes, Theorem

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    The Question is:
    Suppose that 400 pregnant women take a home pregnancy test, and 397 of them test "positive" and the other 3 test "negative." Suppose also that 200 nonpregnant women take the test, and 184 of them test "negative" and the remaining 16 test "positive." What is the probability that a woman who tests positive is actually pregnant?

    Now, there is a lot of information included in this problem and I am clueless on what to do with all these numbers.

    © BrainMass Inc. brainmass.com October 9, 2019, 5:28 pm ad1c9bdddf
    https://brainmass.com/math/probability/probability-bayes-theorem-58151

    Solution Preview

    Let A = (truely) pregnant, and B = test positive (no matter whether truely pregnant)
    We have 400+200 = 600 ...

    Solution Summary

    This solution is comprised of a detailed explanation to answer what is the probability that a woman who tests positive is actually pregnant.

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