APFIVE Z-Scores and Distribution Skewness
A histogram of z-scores from a dataset shows that 60% of the observations fall below a z-score of $$0$$. Considering that, in a perfectly normal distribution, 50% of the observations lie below $$0$$, what does this discrepancy suggest about the data’s distribution?
A
It suggests that the distribution is skewed to the right since more than 50% of the observations fall below the mean (z = 0).
B
It indicates that the data is uniformly distributed across z-scores.
C
It suggests that the distribution is skewed to the left with a long left tail.
D
It indicates a perfectly symmetric, normal distribution.
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