Approximately 68% of all the scores would fall
A) between raw scores of 400 and 600
B) between raw scores of 200 and 500
C) between raw scores of 500 and 600
D) above a raw score of 700

Question

Quizplus · Accepted Answer

This is based on the empirical rule, which states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean. Without specific numbers, the only option that suggests a range that could plausibly encompass one standard deviation on either side of a mean (assuming a symmetric distribution) is option A, between raw scores of 400 and 600.

Approximately 68% of All the Scores Would Fall