(Answered) The number of passenger cars taking a specific exit off the

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The number of passenger cars taking a specific exit off the Pennsylvania Turnpike on Thanksgiving weekend averages 5 per minute. Of those 50% have only the driver; 30% have 2 people in the car; 10% have three people and 5% have 4 people; and 5% have 5 people. Let X = the total number of people that are in the cars passing through a tollbooth at this exit in the next 10 minutes. Find E(X) and Var(X)

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