Approximately 95 percent of the cases represented by the normal curve fall within ________ standard deviation(s)from the mean.

Question

Quizplus · Accepted Answer

The empirical rule states that approximately 68% of cases fall within 1 standard deviation from the mean, 95% fall within 2 standard deviations from the mean, and 99.7% fall within 3 standard deviations from the mean. Therefore, the best choice is B, as 95 percent of cases fall within 2 standard deviations from the mean.

Approximately 95 Percent of the Cases Represented by the Normal