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2. A study found that 22% of American adults are lactose intolerant. If 54 American adults are randomly selected, find: a. (15 pts.) the mean

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2. A study found that 22% of American adults are lactose intolerant. If 54 American adults are randomly selected, find: a. (15 pts.) the mean of the number of American adults who are lactose intolerant. b. (15 pts.) the standard deviation of the number of American adults who are lactose intolerant. c. (20 pts.) the probability that exactly ten of the American adults are lactose intolerant

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