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A value that is smaller than the mean of its distribution has which kind of z-score?
AA negative one
BA positive one
CAn exact zero
DA doubled one
Answer & Solution
Correct answer: A. A negative one
1. A z-score records both how far a value sits from the mean and on which side.
2. Values above the mean take positive z-scores.
3. Values below the mean take negative z-scores, so a smaller value gives a negative one.
_Source: OpenStax High School Statistics (CC BY 4.0), section 6.1 The Standard Normal Distribution_
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