Chapter 5.4, Problem 81E

(a)

To determine

The horizontal asymptotes of the graphs of the functions and give the interpretation of the meaning in the context of the problem, if the model for the percent $m$ of American males between the ages of 20 and 29 who are under $x$ inches tall is modeled by $m\left(x\right)=\frac{100}{1+e^{-0.5536\left(x-69.51\right)}},\text{ 64}\le x\le 78$ and the model for the percent $f$ of American females between the ages of 20 and 29 who are under $x$ inches tall is modeled by $f\left(x\right)=\frac{100}{1+e^{-0.5834\left(x-64.49\right)}},\text{ 60}\le x\le 78$. The given graph is shown below,

(b)

To determine

To calculate: The average height of American males and American females.