Which of the following statements is NOT true regarding the z-score?
A) it can be calculated as the data value minus the mean divided by the variance
B) it is a standardized value (has no units)
C) it denotes the number of standard deviations a data value is from the mean
D) a data value less than the mean will have a z-score less than zero
E) a data value with a z-score less than -3 or greater than +3 might be considered an outlier
Correct Answer:
Verified
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