The random variable has pdf where u(x) is the unit step. Determine the mean and the variance

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The random variable has pdf

fx(x) = ;5(x – 5) + lu(x – 4) – u(x – 8)]

where u(x) is the unit step. Determine the mean and the variance of the random variable thus defined.

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Principles of Communications Systems, Modulation and Noise

ISBN: 978-8126556793

7th edition

Authors: Rodger E. Ziemer, William H. Tranter

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Question Posted: Sep 19, 2018 01:05 PM

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The random variable has pdf where u(x) is the unit step. Determine the mean and the variance

Question:

fx(x) = ;5(x – 5) + lu(x – 4) – u(x – 8)]

Step by Step Answer:

E X 1 x x 5 x 5 u x 4 u x 8 dx 2 8 8 1 18 4 11 ...View the full answer

Principles of Communications Systems, Modulation and Noise

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