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Math Help - Joint probability

  1. #1
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    Joint probability

    hey guys, I'm having some trouble with this question...I can't seem to figure out how to figure out the joint probabilities.

    In the 2009 Season, the Toronto Blue Jays finished the season with a record of
    75-87. In 47 of those games, both the offense and defense performed
    adequately, and in 42 of them, neither the offense nor the defense performed
    adequately. Of the remaining 73 games, only the offense per performed
    adequately 37 times and only the defense performed adequately in the other 36.
    When only the defense performed adequately, there was a 4/9 probability of
    winning, while they won 12 of the 37 games that only the offense performed
    adequately.

    Question: What is the probability that the Blue Jays won given that neither theoffense nor defense performed adequately?


    to me, it seems tat the question hasn't enough information for me to solve it...or i may be entirely wrong and it is workable.


    Thanks in advance for any help
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  2. #2
    MHF Contributor
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    Do you always win if both defense and offense perform adequately?

    otherwise i agree with you
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  3. #3
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    My prof said the case provides enough information to figure out some of the unknown probabilities. So if anyone can help that would be great!
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