The total blood cholesterol levels in a certain Mediterranean population are found to be normally distributed with a mean of 160 milligrams/deciliter (mg/dL) and a standard deviation of 50 mg/dL. Researchers at the National Heart, Lung, and Blood Institute consider this pattern ideal for minimal risk of heart attacks. a. Total cholesterol levels less than 200 mg/dL are considered desirable for adults. Find the percentage of this population who have blood cholesterol levels less than 200 mg/dL. b. A reading of 240 mg/dL and above is considered high for adults. Find the percentage of this population who have high cholesterol levels. c. Find the percentage of this population who have blood cholesterol levels between 110 and 210 mg/dL.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.