# Consider the random process defined in Example 8.5. The PDF, fX (x; n), and the mean function,

## Question:

(a) Find the joint PDF, fX1, X2 (x1, x2; n1, n2).

(b) Find the autocorrelation function, RX, X (k, n) = E [X [k] X [n]].

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## Step by Step Answer:

**Related Book For**

## Probability and Random Processes With Applications to Signal Processing and Communications

**ISBN:** 978-0123869814

2nd edition

**Authors:** Scott Miller, Donald Childers