# Probability: Age Distribution in the United States

The following table gives the approximate age distribution in the United States from the 2000 census.

Age Population

19 & under 29%

20 - 34 21%

35 - 59 34%

60 - 84 15%

85 & over 1%

a. Does the data listed above comprise a valid probability distribution? Explain.

b. What is the probability that a randomly selected person in the US will be at least 20 years old?

c. What is the probability that a randomly selected person will be less than 60 years old?

d. What is the probability that a randomly selected person will be less that 20 years of age or more than 85 years old?

e. What is the probability that a randomly selected person is not older that 59?

https://brainmass.com/statistics/probability/probability-age-distribution-united-states-470578

#### Solution Preview

Age distribution in the United States

1. The following table gives the approximate age distribution in the United States from the 2000 census.

Age Population

19 & under 29%

20 - 34 21%

35 - 59 34%

60 - 84 15%

85 & over 1%

Answers

a. Does the data listed above comprise a valid ...

#### Solution Summary

The solution provides step by step method for the calculation of probabilities. Formula for the calculation and Interpretations of the results are also included.