Question: If x is a random variable that is normally distributed with mean = and standard deviation =, then z=( x-)/ Has mean =0 and standard

If x is a random variable that is normally distributed with mean = and standard deviation =, then z=( x-)/

Has mean =0 and standard deviation = 1

Has mean = and standard deviation =

Has mean = and standard deviation = 1

Has mean = 0 and standard deviation =

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