Based on a poll, 68 % of Internet users are more careful about personal information when using a public Wi-Fi hotspot. What is the probability that among fourfour 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?

Here X ≡ Number of internet users who are more careful about their personal info when using a public Wi-Fi hotspot.

X ~ Binomial Distribution with parameters n = 5, p = 0.68

P (among 5 randomly selected internet users, at least 1 is more careful about their personal info. when using public wifi hotspot)

= P (X>=1)

= 1 - P (X = 0)

=1 - 0.003355443

= 0.996644557

= 0.9966 (approx.)

The results could vary depending on what information the subject chose to give so the number may not be exact