The Empirical Rule can be used whenever the distribution of data values is reasonably well described by a normal (bell-shaped) curve.

Name: The Empirical Rule can be used whenever the distribution of data values is reasonably well described by a normal (bell-shaped) curve.
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The Empirical Rule, also known as the 68-95-99.7 rule, is based on the properties of the normal distribution and can be applied when the data fits a bell-shaped curve.

The Empirical Rule Can Be Used Whenever the Distribution of Data