The distribution of cholesterol levels in teenage boys is approximately normal with a mean of 170 and a standard deviation of 30 (Source: U.S. National Center for Health Statistics). Levels above 200 warrant attention (show all work) a) What is the probability that a teenage boy has a cholesterol level greater than 200? b) What is the probability a teenage boy has a cholesterol level between 165 and 225? c) Assume that a pediatrician’s office has 125 teenage boys as patients, how many of these boys will have cholesterol levels below 160?

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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.