For 14-year-old boys, the distribution of blood cholesterol is approximately Normal with mean =170 milligrams...

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For 14-year-old boys, the distribution of blood cholesterol is approximately Normal with mean =170 milligrams of cholesterol per deciliter of blood (mg/dL) and standard deviation o = 30 mg/dL. According to the 68-95-99.7 Rule, what percent of 14-year-old boys have cholesterol between 110 and 140?13.5%27%95%68%

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