Question

About ____ of the possible outcomes occur within one standard deviation of the mean\

Answer 1

68%

Explanation:

In normal distribution, the empirical rule (aka 68-95-99.7 rule) describes the approximate proportion of data that falls within certain distances from the mean of a normal distribution. Specifically, the rule states that:

• About 68% of the data falls within one standard deviation of the mean.

• About 95% of the data falls within two standard deviations of the mean.

• About 99.7% of the data falls within three standard deviations of the mean.