A z score is a standard score with a:Choose oneM = 2 and SD = -1M = 0 and SD = 0M = 0 and SD = 1M = 1 and SD = 0
Question
A z score is a standard score with a:
- M = 2 and SD = -1
- M = 0 and SD = 0
- M = 0 and SD = 1
- M = 1 and SD = 0
Solution
The correct answer is "M = 0 and SD = 1".
A z-score is a statistical measurement that describes a value's relationship to the mean of a group of values. It is measured in terms of standard deviations from the mean. If a z-score is 0, it indicates that the data point's score is identical to the mean score. A z-score of 1.0 would indicate a value that is one standard deviation from the mean. So, for a z-score, the mean (M) is always 0 and the standard deviation (SD) is always 1.
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