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Laptops produced by a company last on an average of 5 years. The life span of...

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Laptops produced by a company last on an average of 5 years. Thelife span of each laptop follows an exponential distribution.

           (6). What is the probability that a laptop will last in less than 3years?

           (7). What is the probability that a laptop will have the life spanat least 10 years?

(8). How many laptops from 1000, would be expected to workbetween 4 and 7 years? (Choose the nearest integer).

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