A z score is obtained by:
A. subtracting the mean from the raw score and dividing the result by the standard deviation.
B. adding the raw score to the standard deviation and dividing the result by the mean.
C. dividing the raw score by the mean and then subtracting the result from the standard deviation.
D. dividing the raw score by the standard deviation and subtracting the result from the mean.
Answer: A
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