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Each year ratings are compiled concerning the performance of new cars during the first 90 days of use. The following Table summarizes this data. Given

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Each year ratings are compiled concerning the performance of new cars during the first 90 days of use. The following Table summarizes this data. Given the car is a U.S. manufactured car, what is the probability that it needs a warranty repair? US Not US Total 50 30 80 Repair Not Repair 1150 770 1920 Total 1200 800 2000 .0417 0375 .6250 ? .3750

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