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Unformatted text preview: vehicles using the acceleration lane per minute has a mean equal to 1.1. a. What is the probability that more 10/17/09 Problem 2 (Contd) 10/17/09 Problem 3 A neighborhood bordering an airfield has noise level per jet takeoff that is normally distributed with a mean of 100 decibels and a standard deviation of 6 decibels. a. What is the probability that a randomly selected jet will generate a noise level greater than 108 decibels in this neighborhood? 10/17/09 Problem 3 (Contd) 10/17/09 Problem 3 (Contd) 10/17/09 Problem 4 Suppose that the fraction of defective modems shipped by a datacommunications vendor has an approximate beta distribution with D = 5 and & = 21. a. Find the mean and variance of the fraction of defective modems per shipment. What is the probability that a 10/17/09 Problem 4 (Contd) 10/17/09 Problem 4 (Contd)...
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 Spring '09
 DEAN

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