Assume the cholesterol levels of an adult can be described by a Normal model with a mean of

182

mg/dL and a standard deviation of

28.

Complete parts a through e.

Assume the cholesterol levels of an adult can be described by a Normal model with a mean of

182mg/dL and a standard deviation of 28.

a) Draw and label the Normal model

b) What percent of adults do you expect to have cholesterol levels over

200mg/dL? (Round to two decimal places as needed.)

c) What percent of adults do you expect to have cholesterol levels between

140 and 160 mg/dL? (Round to two decimal places as needed.)

d) Estimate the interquartile range of cholesterol levels.

IQR=

mg/dL

(Round to the nearest integer as needed.)

e) Above what value are the highest 15% of adults' cholesterol levels?

enter your response here

mg/dL

(Round to the nearest integer as needed.)