MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Suppose that the probabilities are 0.4, 0.3, 0.1, and 0.2, respectively, that 0, 1, 2, or 3 power failures will strike a certain subdivision in any given year. Find the mean and variance of the random variable X representing the number of power failures striking this subdivision. Calculate the mean, μ. The mean is (Round to two decimal places as needed.) Calculate the variance, ². The variance is (Round to two decimal places as needed.)
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Transcribed Image Text:Suppose that the probabilities are 0.4, 0.3, 0.1, and 0.2, respectively, that 0, 1, 2, or 3 power failures will strike a certain subdivision in any given year. Find the mean and variance of the random variable X representing the number of power failures striking this subdivision. Calculate the mean, μ. The mean is (Round to two decimal places as needed.) Calculate the variance, ². The variance is (Round to two decimal places as needed.)
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