Find the mean, variance and standard deviation for the probability distribution given below: A. Mean = B. Variance = C. Standard Deviation = X -2 P(X) 0.561 0.125 0.222 0.092 When parking a 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) 0.203 0.149 0.116 0.079 0.06 0.028 0.04 0.325 A. Mean = B. Standard Deviation = The cost of parking is 2.5 dollars per hour. Calculate the mean and standard deviation of the amount of revenue each car generates. A. Mean = B. Standard Deviation =