Question: The average cholesterol level for US adults from 2007 to 2010 was 196 mg/dL with a standard deviation of 20 mg/dL. Assuming that cholesterol levels

The average cholesterol level for US adults from 2007 to 2010 was 196 mg/dL with a standard deviation of 20 mg/dL. Assuming that cholesterol levels are normally distributed, fill in the following blanks

a. Approximately ______________ percent of individuals will have cholesterol level between 176 and 216 mg/dL.

b. Approximately 2.5% of individuals will have a cholesterol level higher than

_____________ mg/dL (Try to do this one without a z-score table. Hint: 2.5 is half of 5)

c. Approximately __________ % of individuals will have a cholesterol lower than 200.

Referring again to the cholesterol data in the previous question, calculate the z-score of an individual

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