The bar graph shows your chances of surviving to various ages once you reach 60.Source: Na...

The bar graph shows your chances of surviving to various ages once you reach 60.

Source: National Center for Health Statistics

The functions

model the chance, as a percent, that a 60-year-old will survive to age x. Use this information to solve.

a. Find and interpret f(90).

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b. Find and interpret g(90).

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c. Which function serves as a better model for the chance of surviving to age 90?