Exam P:Probability機率題庫下載題庫

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297. The lifetime of a machine part has a continuous distribution on the interval (0, 40) with probability density function f, where f (x) is proportional to .

Calculate the probability that the lifetime of the machine part is less than five.
(A) 0.03
(B) 0.13
(C) 0.42
(D) 0.58
(E) 0.97



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