Too much cholesterol in the blood increases the risk of heart disease. The cholesterol levels of young women aged 20 to 34 years vary approximately Normally, with a mean of 185 milligrams per...

Too much cholesterol in the blood increases the risk of heart disease. The cholesterol levels of young women aged 20 to 34 years vary approximately Normally, with a mean of 185 milligrams per deciliter (mg/dl) and a standard deviation of 39mg/dl.

Approximately what percent of young women in this age group will have cholesterol levels of less than 150 mg/dl?