According to the empirical rule, we would expect approximately 68, 95, and 99.7 percent of the values to fall within one, two, and three standard deviations above and below the mean respectively for all distributions.

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Quizplus · Accepted Answer

The empirical rule, also known as the 68-95-99.7 rule, applies specifically to normal (bell-shaped) distributions, not all distributions.

According to the Empirical Rule, We Would Expect Approximately 68