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Math Help - Percentile Determination, given: mean, median, standard deviation

  1. #1
    Newbie
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    Jan 2011
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    Percentile Determination, given: mean, median, standard deviation

    Hello all,

    I have a question about determining percentile on a test. I am given mean (77%), median (78%), and standard deviation (8). I scored a 74%, and there were 102 test takers. If possible, could you explain to me how to calculate my rank on the test or percentile?

    Thanks so much!
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  2. #2
    Senior Member
    Joined
    Dec 2010
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    470
    There is not enough information.
    The percentile is the percentage of people who scored lower than a certain score.

    All that can be said is that the percentile is no more than 50%, since the median 78% is higher than 74%.
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