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(Solved): 4.47 Working on summer vacation. Recall (Exercise 3.13 \( \square \) , p. 145) that a Harris Int ...






4.47 Working on summer vacation. Recall (Exercise 3.13 \( \square \) ?, p. 145) that a Harris Interactive (July 2013) poll fo
4.47 Working on summer vacation. Recall (Exercise 3.13 \( \square \) ?, p. 145) that a Harris Interactive (July 2013) poll found that \( 22 \% \) of U.S. adults do not work at a while on summer vacation. In a random sample of 10 U.S. adults, let \( x \) represent the number who do not work during summer vacation. a. For this experiment, define the event that represents a "success." b. Explain why \( x \) is (approximately) a binomial random variable. c. Give the value of \( p \) for this binomial experiment. d. waFind \( P(x=3) \). e. Find the probability that 2 or fewer of the 10 U.S. adults do not work during summer vacation.


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a. For the given experiment, the event that "the adult does not work during summer vacation" represents the success.
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