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21 October, 23:22

Rylan is calculating the standard deviation of a data set that has 9 values. He determines that the sum of the squared deviations is 316. What is the standard deviation of the data set? Round the answer to the nearest tenth

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  1. 21 October, 23:49
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    The formula for the sum of the squares of the deviations is

    SS = s² (N - 1)

    We are given

    SS = 316

    N = 9

    Substituting

    316 = s² (9 - 1)

    Solving for s

    s = 6.28

    The standard deviation is 6.28
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Home » Mathematics » Rylan is calculating the standard deviation of a data set that has 9 values. He determines that the sum of the squared deviations is 316. What is the standard deviation of the data set? Round the answer to the nearest tenth
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