Question

according to the empirical rule, how much of the data falls within 3 standard deviations? 1. 68% 2. 95% 3. 25% 4. 99.7%

Explanation:

Step1: Recall empirical rule

The empirical rule for a normal - distribution states that about 68% of data falls within 1 standard deviation, about 95% within 2 standard deviations, and about 99.7% within 3 standard deviations.

Answer:

D. 99.7%