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For the following data set: -5, 11, 3, 10, 4, -2, 9 a. Calculate the sample mean b. Calculate the sample variance c. calculate the

For the following data set: -5, 11, 3, 10, 4, -2, 9 a. Calculate the sample mean b. Calculate the sample variance c. calculate the z-scores corresponding to the following x-values: -1, 6, 0 d. Calculate the x-values corresponding to the following z-scores: -1.96, -2.45, 2.25

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