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30. Credit Card Purchases In a survey, 169 respondents say that they never use a credit card, 1227 say that they use it sometimes, and 2834 say that they use it frequently. What is the probability that a randomly selected person uses a credit card frequently? Is it unlikely for someone to use a credit card frequently? How are all of these results affected by the fact that the responses were obtained by those who decided to respond to the survey posted on the Internet by America Online?
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Essentials of Statistics; MathXL Valuepack Access Card (6-months) (5th Edition)
- What term is used to express the likelihood of an event occurring? Are there restrictions on its values? If so, what are they? If not, explain.arrow_forwardIn Example 8, what is the probability that an employee chosen at random has 30 or more years of service?arrow_forwardIn Example 5, what is the probability that an institution selected at random is in the Pacific region?arrow_forward
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