Omar recorded the number of hours he worked each week for a year. The random sample that he took from his data is given. 13 , 17 , 9 , 21 What is the standard deviation for the data? Standard deviation: s=sqrt(((x_1−x―)^2+(x_2−x―)^2+...+(x_n−x―)^2)/(n−1))

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5 point 2

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Omar recorded the number of hours he worked each week for a year. The random sample that he took from his data is given. 13 , 17 , 9 , 21 What is the standard deviation for the data? Standard deviation: s=sqrt(((x_1−x―)^2+(x_2−x―)^2+...+(x_n−x―)^2)/(n−1))

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