Question: A computer store sells three types ofmicrocomputers, brandA, brandB, and brand C. Of the computers theysell, 60% are brandA, 20% are brandB, and 20% are

A computer store sells three types ofmicrocomputers, brandA, brandB, and brand C. Of the computers theysell, 60% are brandA, 20% are brandB, and 20% are brand C. They have found that 20% of the brand Acomputers, 10% of the brand Bcomputers, and 10% of brand C computers are returned for service during the warranty period. If a computer is returned for service during the warrantyperiod, what is the probability that it is a brand Acomputer? A brand Bcomputer? A brand Ccomputer?

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