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5 percent of computer parts produced by a certain supplier are defective. a) What is the probability that a sample of 15 parts contains more

5 percent of computer parts produced by a certain supplier are defective. a) What is the probability that a sample of 15 parts contains more than 2 defective items? b) What is the probability that a sample of 15 parts contains at least 1 defective items? c) What is the expected number of defective parts in 30 parts?

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