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Mathematics, 07.07.2019 01:30 KillerSteamcar

Based on a poll, 70% of internet users are more careful about personal information when using a public wi-fi hotspot. what is the probability that among 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?

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