SOLUTION: According to the Centers for Disease Control and Prevention, he total blood cholesterol levels in Americans are found to be normally distributed with a mean of 200 mg/dl and a st

Question 1010532:
According to the Centers for Disease Control and Prevention, he total blood cholesterol levels in Americans are found to be normally distributed with a mean of 200 mg/dl and a standard deviation of 18 mg/dl. Determine the percentage of the population who have blood cholesterol levels less than 210 mg/dl. (Round to four decimal places.)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
According to the Centers for Disease Control and Prevention, he total blood cholesterol levels in Americans are found to be normally distributed with a mean of 200 mg/dl and a standard deviation of 18 mg/dl. Determine the percentage of the population who have blood cholesterol levels less than 210 mg/dl. (Round to four decimal places.)
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z(210) = (210-200)/18 = -0.5556
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P(x < 210) = P(z < -0.5556) = normalcdf(-100,-0.5556) = 0.2892
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Cheers,
Stan H.
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