Question

Any normal distribution follows Empirical Rule.

Empirical Rule (fill in the missing parts)

About 68% of values fall within
standard deviation from the mean.
About
% of the values fall within two standard deviations from the mean.
Almost all of the values—about 99.7%—fall within
standard deviations from the mean.

Answer 1

The Empirical Rule, also known as the 68-95-99.7 rule, states the following for a normal distribution:

- About 68% of values fall within **1** standard deviation from the mean.
- About **95%** of the values fall within two standard deviations from the mean.
- Almost all of the values—about 99.7%—fall within **3** standard deviations from the mean.