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Math Help - Z-score.

  1. #1
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    Z-score.

    Suppose you did a survey of male shoes size and the mean of that survey was size 10.5 with a standard deviation of 1.5. What is the z-score of a size of 8?
    A.–1.67
    B.–0.50
    C. 0.67
    D. 0.32
    Last edited by mr fantastic; May 26th 2011 at 10:33 PM. Reason: Moved.
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  2. #2
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    May 2011
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    Sacramento, CA
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    Welcome Taylo. I should start by saying we're not an answering machine. We volunteer our time to help each other out, but we cannot help if you have not tried. There are plenty of us lurking around that can assist you on these problems, but you need to begin this conversation with where you are having trouble with these problems. What have you tried so far? What concept do you not understand?
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