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At Least One. In Exercises 5-12, find the
12. Wi-Fi Based on a poll conducted through the e-edition of USA Today, 61% of Internet users are more careful about personal information when using a public Wi-Fi hotspot. What is the probability that among four randomly selected Internet users, at least one is more careful about personal information when using a public Wi-Fi hotspot? How is the result affected by the additional information that the survey subjects volunteered to respond?
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Elementary Statistics (13th Edition)
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