This appendix reviews the basic terminology and definitions of random process theory. Our discussion is by no means comprehensive, so a reader without prior exposure to probability or random process theory should consult a fundamental text in the field.

Most probability theory is based on the concept of a random variable. This section presents the definitions and terminology associated with random variables and random processes.

An *experiment*, in terms of probability theory, is any set of repeatable procedures that produces an unpredictable *outcome*. Examples of simple experiments are flipping a coin, rolling a die, or driving to work through traffic. For the coin, the outcome is either ...

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