Based on the empirical rule we can expect about 95 percent of the values in bell-shaped distributions to be within ± one standard deviation of the mean.

Name: Based on the empirical rule we can expect about 95 percent of the values in bell-shaped distributions to be within ± one standard deviation of the mean.
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The empirical rule states that about 95 percent of the values in a bell-shaped distribution are within ± two standard deviations of the mean, not one.

Based on the Empirical Rule We Can Expect About 95