Concept explainers
In each of the following problems, the binomial distribution will be used. Answers may vary slightly depending on whether the binomial distribution formula, the binomial distribution table, or the distribution results from a calculator or computer are used. Please answer the following questions and then complete the problem.
What makes up a trial? What is a success? What is a failure?
What are the values of n, p, and q?
Sociology: Ethics The onetime fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a onetime fling. About 10% of all adults deliberately do a onetime fling and feel no guilt about it (Source: Are You Normal?, by Bernice Kanner. St. Martin’s Press). In a group of seven adult friends, what is the probability that
(a) no one has done a onetime fling?
(b) at least one person has done a onetime fling?
(c) no more than two people have done a onetime fling?
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Chapter 6 Solutions
Understanding Basic Statistics
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