According to a 2019 Bankrate survey, most Americans do not use all of their paid vacation days. The most likely reason cited was that vacations are too expensive. Consider the survey question: “How many of your paid vacation days do you plan to use (this year)?” The results are summarized in the accompanying table.

a. What is the probability that a randomly selected American with paid vacation time will use all of their paid vacation days this year?

b. What is the probability that a randomly selected American with paid vacation time will use at least half of their paid vacation days this year?

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Response All Almost all About half About a quarter Less than a quarter None Unsure (because I have unlimited days) Percentage 38 21 17 7 596