Question: 18. Calculate the variance and standard deviation for the samples a) n = 40, x = 380, x = 100 Answer: s = b)

18. Calculate the variance and standard deviation for the samples a) n

18. Calculate the variance and standard deviation for the samples a) n = 40, x = 380, x = 100 Answer: s = b) n = 20, x2 = 18, x = 17 Answer: s = 2

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