An exponential random variable has a PDF given by fX(x) = exp ( x) u (x) .

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An exponential random variable has a PDF given by fX(x) = exp (– x) u (x) .
(a) Find the mean and variance of X.
(b) Find the conditional mean and the conditional variance given that X > 1

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Probability and Random Processes With Applications to Signal Processing and Communications

ISBN: 978-0123869814

2nd edition

Authors: Scott Miller, Donald Childers

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Question Posted: Nov 19, 2015 11:57 PM

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An exponential random variable has a PDF given by fX(x) = exp ( x) u (x) .

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Probability and Random Processes With Applications to Signal Processing and Communications

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