When parking at car in a downtown parking lot. drivers pay according to the number of hours or fraction thereof. The probability distribution of the number of hours cars are parked has been estimated as follows: P(X) 0.224 0.102 0.122 0.083 0.052 0.032 0.033 0.352 A. Mean = B. Standard Deviation = C] The cost of parking is 2 dollars per hour. Calculate the mean and standard deviation of the amount of revenue each car generates. A. Mean = C] B. Standard Deviation = C]