If an entire population of N = 20 scores is transformed into z-scores,the set of 20 z-scores will have ΣX = 0.

Name: If an entire population of N = 20 scores is transformed into z-scores,the set of 20 z-scores will have ΣX = 0.
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Quizplus · Accepted Answer

When transforming a set of scores into z-scores, the mean of the resulting set of z-scores will always be 0. Therefore, ΣX (the sum of the original scores) is not necessarily equal to 0, but ΣZ (the sum of the z-scores) will always be 0.

If an Entire Population of N = 20 Scores Is