In a normal distribution, ± 1 z-score includes about:
A) 30% of the scores
B) 50% of the scores
C) 70% of the scores
D) 90% of the scores

Name: In a normal distribution, ± 1 z-score includes about: A) 30% of the scores B) 50% of the scores C) 70% of the scores D) 90% of the scores
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Quizplus · Accepted Answer

In a normal distribution, ±1 z-score from the mean includes approximately 68% of the scores, which is closest to 70% among the given options.

In a Normal Distribution, ± 1 Z-Score Includes About