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The Complete Idiot's Guide to Statistics, 2nd Edition by Robert Donnelly

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Your Turn

A political telephone survey of 260 people asked whether they were in favor or not in favor of a proposed law. Each person was identified as Republican or Democrat. The following contingency table shows the results.
188
A person from the survey is selected at random. We define:
◆ Event A: The person selected is in favor of the new law.
◆ Event B: The person selected is a Republican.
1. Determine the probability that the selected person is in favor of the new law.
2. Determine the probability that the selected person is a Republican.
3. Determine the probability that the selected person is not in favor of the new law.
4. ...

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