Cholesterol Level and the Risk of Heart Attack.
The table below lists data concerning the relationship of cholesterol level in men to the risk of a heart attack.
Cholesterol Level Number of Men per 100,000 Who Suffer a Heart Attack
100.......................30
200 ......................65
250 ......................100
275 ......................130
a) Use regression on a graphing calculator to fit linear, quadratic, and cubic functions to the data.
b) It is also known that 180 of 100,000 men with a cholesterol level of 300 have a heart attack. Which function in part (a) would best make this prediction?
c) Use the answer to part (b) to predict the heart attack rate for men with cholesterol levels of 350 and of 400?