Calculate the Standard Deviation of the following list of data: 6, 7, 8, 9, 10

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  1. Take the square root of the average of the square of the deviation from the mean (8)

    sqrt [2*(2^2) + 2*(1^2) +0]/5
    = (sqrt 10)/5 = 0.632

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  2. What is y x u= -21

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