OpenStax, Algebra and Trigonometry 2e §13.7 Probability · Exercise 59 · Probability · Counting & chance
Probability · Exercise 59
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).
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.)
OpenStax, Algebra and Trigonometry 2e · §13.7 Probability · Exercise 59
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