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closed as a duplicate of: MADE EASY TEST SERIES
You purchase a certain product .The manual states that lifetime T of a product ,defined as the amount of time (in years) the product works properly until it breaks down , satisfies P(T >=t) = e-t/5 , for all t>=0.You purchase and use the product without any prob for two years. The probablility that it breaks down in the third year is ___________________ upto 3 decimal places
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