Find mean and standard deviation of standardization
μ=Suppose Z is the standardization of X (Z=(x-μ)/σ) where μ and σ are the mean and standard deviation of X, calculate the mean and standard deviation of Z?
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Auto Lavage is a Canadian company that owns and operates a large automatic carwash facility near Quebec. The following table provides data concerning the company's costs.
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A sample has a mean of m=25. if one person with a score of x=25 is added to the sample, what effect will it have on the sample mean?
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