Mathematics, 23.12.2020 23:00 shaniahharrisoov3lqv

Two stores sell a certain product. Store A has 45% of the sales, 3% of which are of defective items, and store B has 55% of the sales, 4% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives one of this product as a gift. What is the probability it is defective

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Two stores sell a certain product. Store A has 45% of the sales, 3% of which are of defective items,...