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    Describe range, variance, standard deviation and calculate values

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    Given the following raw scores, calculate the following values, show your calculations:

    Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
    a. Range _____________________
    b. Variance ____________________
    c. Standard Deviation _____________________

    Describe each of the following statistical terms, and where applicable, define with the appropriate equation:

    a. Range _______________________________________________
    b. Variance _____________________________________________
    c. Standard Deviation ______________________________________

    © BrainMass Inc. brainmass.com October 10, 2019, 1:25 am ad1c9bdddf
    https://brainmass.com/statistics/range/describe-range-variance-standard-deviation-calculate-value-333880

    Solution Preview

    For more details see the attached file.

    a) Range: Largest - Smallest = 9 - 3 = 6

    b) Variance = (Sum of the squares of the observations/ No. of observations) - ( Mean)2,
    Where Mean = Sum of the observations / No. of observations
    Sum = 77
    Mean = ...

    Solution Summary

    The expert describes the range, variance, standard deviation and calculate values.

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