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Mathematics, 24.10.2019 21:43 kimbllumi

Amanufacturing company uses an acceptance scheme on items from a production line before they are shipped. the plan is a two-stage one. boxes of 25 items are readied for shipment, and a sample of 3 items is tested for defectives. if any defectives are found, the entire box is sent back for 100% screening. if no defec- tives are found, the box is shipped. (a) what is the probability that a box containing 3 defectives will be shipped? (b) what is the probability that a box containing only 1 defective will be sent back for screening?

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