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 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? The probability that at least one of them is careful about personal information is (Round to three decimal places as needed.)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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 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?
The probability that at least one of them is careful about personal information is
(Round to three decimal places as needed.)
Transcribed Image Text: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 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? 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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