Discussion
The z-score tells you
Answer: A
The z-score tells you how far a data point is from the Mean in terms of Standard deviations.
\(z = (x - \mu)/\sigma\). A z-score of 2 means the value is two standard deviations above the mean, and -1 one standard deviation below.
Percentages and likelihoods can be read from a z-table using the z-score, but the z-score itself is a distance in standard deviations, not a percentage or a probability, and not an average of deviations.
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