The expected value of a discrete random variable is equal to the standard deviation of the random
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The expected value of a discrete random variable is equal to the standard deviation of the random variable. Graphical Analysis In Exercises 9–12, decide whether the graph represents a discrete random variable or a continuous random variable. Explain your reasoning.
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9780321693624
5th Edition
Authors: Ron Larson, Betsy Farber
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