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Unformatted text preview: Chapter 5: Discrete Random Variables and Their Probability Distributions Bin Wang bwang@jaguar1.usouthal.edu Department of Mathematics and Statistics University of South Alabama Mann E7 1/14 5.1 Random variables Definition (random variable) A random variable is a variable whose value is determined by the outcome of a random experiment. Mann E7 2/14 5.1 Random variables Definition (random variable) A random variable is a variable whose value is determined by the outcome of a random experiment. Definition (Discrete random variable) A random variable that assumes countable values is called a discrete random variable. Mann E7 2/14 5.1 Random variables Definition (random variable) A random variable is a variable whose value is determined by the outcome of a random experiment. Definition (Discrete random variable) A random variable that assumes countable values is called a discrete random variable. Definition (Continuous random variable) A random variable that can assume any value contained in one or more intervals is called a continuous random variable. Mann E7 2/14 5.2 Probability Distribution of a Discrete Random Variable Definition (Probability Distribution of a Discrete Random Variable) The probability distribution of a discrete random variable lists all the possible values that the random variable can assume and their corresponding probabilities....
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This note was uploaded on 02/10/2012 for the course ST 210 taught by Professor Wangs during the Fall '09 term at S. Alabama.
 Fall '09
 Wangs

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