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statistics-and-probability > probability
Case Study - 3 A shop selling electronic items sells smartphones of only three reputed companies A, B and C because chances of their manufacturing a defective smartphone are only 5%, 4% and 2% respectively. In his inventory he has 25% smartphones from company A, 35% smartphones from company B and 40% smartphones from company C.
A person buys a smartphone from this shop. (ii) What is the probability that this defective smartphone was manufactured by company B?
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