Mathematics, 02.08.2019 02:30 ErrorNameTaken505

Aforeman for an injection-molding firm admits that on 13% of his shifts, he forgets to shut off the injection machine on his line. this causes the machine to overheat, increasing the probability that a defective molding will be produced during the early morning run from 4% to 21%. if a molding is randomly selected from the early morning run of a random day, what is the probability that it is defective?

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Aforeman for an injection-molding firm admits that on 13% of his shifts, he forgets to shut off the...