The cholesterol levels of an adult can be described by a normal model with a mean of 197 mg/dl and a standard deviation of 24.
a) draw and label the normal model.
o a
ob
lan
1670 65 5209201
99-90
105 149
173 197 201 245 289
b) what percent of adults do you expect to have cholesterol levels over 220 mg/dl?
round to two decimal places as needed)
c) what percent of adults do you expect to have cholesterol levels between 170 and 180 mg/dl?
round to two decimal places as needed
d) estimate the interquartile range of cholesterol levels
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