The density function of a random variable X is f (x) = xex, x > 0. The
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The density function of a random variable X is f (x) = xe−x, x > 0.
The distribution function of X (for x > 0) is
(a) 1 − e−x
(b) 1 − xe−x
(c) 1 − x − e−x
(d) 1 − (1 + x)e−x
(e) 1 − x2e−x
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Related Book For 
Introduction To Probability Volume 2
ISBN: 9781118123331
1st Edition
Authors: Narayanaswamy Balakrishnan, Markos V. Koutras, Konstadinos G. Politis
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