Question: Not according to a Harris Interactive (July 2013) poll of U.S. adults. The poll found that 61% of the respondents work during their summer vacation,

Not according to a Harris Interactive (July 2013) poll of U.S. adults. The poll found that 61% of the respondents work during their summer vacation, 22% do not work at all while on vacation, and 17% were unemployed.
Assuming these percentages apply to the population of U.S. adults, consider the work status during summer vacation of a randomly selected adult.
a. What is the probability that the adult works while on summer vacation?
b. What is the probability that the adult will not work while on summer vacation, either by choice or due to unemployment?

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