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Find the required probability for binomial distribution.

Sociology: Ethics The one-time 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 one-time fling. About 10 percent 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

i) No one has done a one-time fling?

ii) At least one person has done a one-time fling?

iii) No more than two people have done a one-time fling?

Statistics and Probability, Statistics

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