Question: 3. The logistic growth model () = 90 /1 + 271 ^0.122 models the percentage of Americans who are x years old with some coronary

3. The logistic growth model () = 90 /1 + 271 ^0.122 models the percentage of Americans who are x years old with some coronary heart disease. a. What percentage of 20 year olds have some coronary heart disease? b. What percentage of 80 year olds have some coronary heart disease? c. At what age is the percentage of some coronary heart disease 50%?

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