The standardized normal variate z means_________ away from the mean?
Correct answer: B. S.D.
- A. Mean
- B. S.D.
- C. Variance
- D. None of these
Explanation
The standardized normal variate is z = (x − μ)/σ, so it measures the distance from the mean in standard-deviation units. Thus z = 1 means one standard deviation above the mean, while z = −1 means one below it.
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