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Math Help - Probability Question anser given but need working out

  1. #1
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    Probability Question

    anser is 0.89
    not got a clue how an explaintion would be nice as well if possable
    n thank you for viewing this traed and trying to help
    Question A)iii sorry

    :s pulzzed boy :s
    Attached Thumbnails Attached Thumbnails Probability Question anser given but need working out-scanned-17-11-2008-23-44.jpg  
    Last edited by Rupz; November 17th 2008 at 03:09 PM. Reason: forgot to write what question
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  2. #2
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    Quote Originally Posted by Rupz View Post
    anser is 0.89
    not got a clue how an explaintion would be nice as well if possable
    n thank you for viewing this traed and trying to help
    Question A)iii sorry

    :s pulzzed boy :s
    \Pr(S' \cup T') = 1 - \Pr(S \cap T) = 1 - \frac{22}{200} = \, ....

    Note: There are 200 bikes. 22 of them lie in the set S and the set T.
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