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    Mean (Average) And Standard Deviation Sample Calculation

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    The score distribution shown in the table is for all students who took a yearly AP stats exam.

    Score Percent of Students
    5 13.3
    2 21.9
    3 24.9
    2 17.8
    1 22.1

    Find the mean AND standard deviation:

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    Solution Preview

    Assume there is a process with N possible outcomes each with probability , such that ...

    Solution Summary

    The solutin shows how to calculate a mean and standard deviation for a given distribution