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  3. page 2 of 2 3 the wearout mileage of a certain tir

PAGE 2 OF 2 3 THE WEAROUT MILEAGE OF A CERTAIN TIRE IS NORMALLY DISTRIBUTED...

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PAGE 2 OF 2 3 THE WEAROUT MILEAGE OF A CERTAIN TIRE IS NORMALLY DISTRIBUTED WITH A MEAN OF 35 000 AND A STANDARD DEVIATION OF 2 500 MILES a DETERMINE THE PERCENT OF TIRES THAT WILL LAST BETWEEN 30 750 MILES AND 38 300 MILES b DETERMINE THE PERCENT OF TIRES THAT WILL LAST AT LEAST 39 000 MILES c IF THE MANUFACTURER GUARANTEES THE TIRES TO LAST AT LEAST 30 750 MILES WHAT PERCENT OF TIRES WILL FAIL TO LIVE UP TO THE GUARANTEE d IF 250 000 TIRES ARE PRODUCED HOW MANY WILL LAST AT LEAST 39 000 MILES

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