A random sample is selected from a population with mean ? = 100 and standard deviation  ? = 10. Determine the mean and standard deviation of the sampling distribution of x for each of the following sample sizes. (Round your standard deviations to three decimal places.) a. n = 50 ?x=  ?x=   b.  n = 100 ?x=  ?x=   c. n = 400 ?x=  ?x=

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