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4. A company produces mobile phones of which 3% are defective. a) If 12 mobile phones are selected for testing, what is the probability that

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4. A company produces mobile phones of which 3% are defective. a) If 12 mobile phones are selected for testing, what is the probability that more than 2 are not defective? (2pts) b) If a distributor gets a shipment of 200 mobile phones, what is the probability that more than 10 of them are defective? (3pts)

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