The Empirical Rule For Normal Distributions (a.k.a the 68-95-99.7 Fule) od 68% 95% 99.7% mean-3s mean-2s mean -1s mean mean +ls mean +2s mean +3s 8. For males in a certain town, the systolic blood pressure is normally distributed with a mean of 120 and a standard deviation of 10. Using the empirical rule, determine the interval of systolic blood pressures that represent the middle 99.7% of males.

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