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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
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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