Question: If x is a normal random variable with mean 80 and standard deviation 5 , the z-score for x=72 is 1.6 1.6 1.8 1.8

If x is a normal random variable with mean 80 and

If x is a normal random variable with mean 80 and standard deviation 5 , the z-score for x=72 is 1.6 1.6 1.8 1.8

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