Explore BrainMass
Share

Explore BrainMass

    Probability: Age Distribution in the United States

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    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?

    © BrainMass Inc. brainmass.com October 10, 2019, 4:38 am ad1c9bdddf
    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.

    $2.19