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Resultados de traduccin

A company conducts a thorough quality check due to the influx of recent complaints. From the study determined that only 70% of the production of a certain part meets the specifications, while the rest of the production has defects in the material or in the finishes. 20% of the pieces have material failures and 15% failures in the terminations.

a) Determine the percentage of pieces that have both faults.

b) If a part is chosen at random and it has material failures, what is the probability that it has both failures?