Question

According to the Empirical Rule, 99.7% of scores in a normal distribution fall within 2 standard deviations of the mean.

a. True
b. False

Answer 1

False

Explanation:

Here, we want to check the validity of the given statement. The statement is false.

Under the empirical rule, following a normal distribution, 99.7% of observed data lies within 3 standard deviations from the mean while 95% of observed data lies within 2 standard deviation from the mean and 68% of observed data lies within 1 standard deviation of the mean.

Please check attachment for diagrammatic representation of the empirical rule.