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March 29, 2017

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The following data lists the average monthly snowfall for January in 15 cities around the US:

37 33 35 27 9 45 22 8
42 48 37 39 9 15 12

Find the mean, variance, and standard deviation

  • statistics - ,

    Find the mean first = sum of scores/number of scores

    Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

    Standard deviation = square root of variance

    I'll let you do the calculations.

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