Working on Summer Vacation. An Adweek/Harris (July 2011) poll found that 35% of U. S. adults do not work at all 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. Find 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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