College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 4 - Exponential and Logarithmic Functions - Exercise Set 4.5 - Page 506: 43

Answer

about $3.7\%.$

Work Step by Step

Calculating P for x=20 (year-olds): $ P(20)=\displaystyle \frac{90}{1+271e^{-0.122(20)}}\approx$3.65547687006 (percent) The probability that a 20-year-old has some coronary heart disease is about $3.7\%.$
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