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    Mean, Range, Variance, Standard deviation

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    The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.

    a. Compute the mean for this sample.
    b. Compute the range for this sample.
    c. Compute the variance for this sample.
    d. Compute the standard deviation for this sample.

    Show your work!

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