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  3. lifetime is 16 years with a standard deviation of

lifetime is 16 years with a standard deviation of 2 years a If you bought...

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lifetime is 16 years with a standard deviation of 2 years a If you bought one such car today what is the chance that your car will only last for up to 14 years b If your friend had a car of this brand for 14 years already what is the chance that he she has to buy a new car in seven years c If a company bought 7 such cars what is the probability that exactly two of them will last between 12 and 20 years d If the manufacturer want to offer a warrantee that is as attractive as possible and at the same time they don t want to refund more than 0 5 of customers how long the warranty should be

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