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Arandom variable X has mean of 4 and a standard deviation of 2. What is the corresponding z-score for x=7? A.0.5 B.1.0 C.1.5 D.2

Arandom variable X has mean of 4 and a standard deviation of 2. What is the corresponding z-score for x=7?

A.0.5 B.1.0 C.1.5 D.2

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