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Pinworm Infestation. Pinworm infestation, commonly found in children, can be treated with the drug pyrantel pamoate. According to the Merck Manual, the treatment is effective is 90% of cases. Suppose that a simple random sample of n = 10 children with pinworm infestation are given pyrantel pamoate. What is the probability that exactly 9 of the children are cured? Report your answer to four decimal places, rounding in the usual way?

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