Question:

# The cholesterol levels of 14-year-old boys are Normally

Last updated: 7/7/2022

The cholesterol levels of 14-year-old boys are Normally distributed with mean 17 mg/dL and standard deviation 30 mg/dL. Suppose you pick a 14-year-old boy at random and measure his cholesterol. What is the probability that his cholesterol is less than 140?