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Based on a​ poll, 61


61​% of Internet users are more careful about personal information

when using a public​ Wi-Fi hotspot. What is the probability that among three


three 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?

The probability that at least one of them is careful about personal information is ?.

​(Round to three decimal places as​ needed.)

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