The number of people in a car that crosses a certain bridge is represented by the random variable X, which has a mean value μx = 2.0, and a variance σx2 = 1. The toll on the bridge is $5.00 per car plus $1.00 per person in the car. The mean and variance of the total amount of money that is collected from a car that crosses the bridge are:

Mean = 7Variance = 1

Mean = 11Variance = 1

Mean = 2Variance = 1

Mean = 2Variance = .5

Mean = 7Variance = 2