Use this data for the exercises that follow: In 2013, there were roughly 317 million citizens in the United States, and about 40 million were elderly (aged 65 and over).[34] If you meet five U.S. citizens, what is the percent chance that exactly one is elderly? (Round to the nearest tenth of a percent.)

Inverse functions: 3 2 x has an inverse, but x does not Horizontal line test: o A function is one-to-one if no horizontal line intersects y=f (x) more than once o If a function is one-to-one, the function has an inverse f ( f (x))=x...