# Empirical rule

In this exercise, find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank. The results form the basis for the empirical rule.

About _______% of the area is between z = -3.5 and z = 3.5 (for within 3.5 standard deviations of the mean).

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This solution finds the probability that observations from a ...

#### Solution Summary

This solution finds the probability that observations from a normal distribution fall within 3.5 standard deviations of the mean, showing that the normal distribution is the basis for the empirical rule. Please see attachment.

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