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A sample of five numbers drawn from a population is (5, 2, 4, 5, 4). Which of the following statements concerning this sample is most accurate? A. The variance of the sample is: ∑(x1 − mean of the sample)2 / (n − 1) = 1.5. B. The mean of the sample is ∑X / (n − 1) = 5. C. The sampling error of the sample is equal to the standard error of the sample. |