In a standard normal distribution z = 0 corresponds to _____________?
Correct answer: A. Mean
- A. Mean
- B. S.D.
- C. M.D.
- D. Q.D.
Explanation
A z-score measures distance from the mean in standard-deviation units, so z=0 means no distance from the mean. It therefore corresponds to the mean, not to the standard deviation or other deviation measures.
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