The county highway department recorded the following probabilities for the number of accidents per day on a
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The county highway department recorded the following probabilities for the number of accidents per day on a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown. Find the mean, variance, and standard deviation.
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Number of accidents X 2 4 Probability PX)0.4 0.2 0.2 0. 0.1
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X PX 004 102 202 301 401 13 2 X 2 PX ...View the full answer
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