EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 8220100460463
Author: Anderson
Publisher: CENGAGE L
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Chapter 4, Problem 51SE
The following crosstabulation shows household income by educational level of the head of household (Statistical Abstract of the United States, 2008).
| Household Income ($1000s) | ||||||
| Education Level | Under 25 | 25.0–49.9 | 50.0–47.9 | 75.0–99.9 | 100 or more | Total |
| Not H.S. Graduate | 4207 | 3459 | 1389 | 539 | 367 | 9961 |
| H.S. Graduate | 4917 | 6850 | 5027 | 2637 | 2668 | 22,099 |
| Some College | 2807 | 5258 | 4678 | 3250 | 4074 | 20,067 |
| Bachelor’s Degree | 885 | 2094 | 2848 | 2581 | 5379 | 13,787 |
| Beyond Bach. Deg. | 290 | 829 | 1274 | 1241 | 4188 | 7822 |
| Total | 13,106 | 18,490 | 15,216 | 10,248 | 16,676 | 73,736 |
- a. Develop a joint
probability table. - b. What is the probability of a head of household not being a high school graduate?
- c. What is the probability of a head of household having a bachelor’s degree or more education?
- d. What is the probability of a household headed by someone with a bachelor’s degree earning $100,000 or more?
- e. What is the probability of a household having income below $25,000?
- f. What is the probability of a household headed by someone with a bachelor’s degree earning less than $25,000?
- g. Is household income independent of educational level?
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Chapter 4 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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