
Concept explainers
Suppose that a survey of350 college students is taken. Each student is asked the type of college attended (public or private) and the family’s income level (low, middle, high). Use the data in the table to solve Exercises 83-88. Express probabilities as simplified fractions.
Public | Private | Total | |
Low | 120 | 20 | 140 |
Middle | 110 | 50 | 160 |
High | 22 | 28 | 50 |
Total | 252 | 98 | 350 |
Find the probability that a randomly selected student in the survey
attends a private college or is from a high-income family.

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