The lifetimes of systems A and B are distributed exponentially with respective mean lifetimes 1.28104hoursand 1.67104hours. The systems are put in service at the same time. Write a VBA code to estimate the probabilitythat system A will last longer than system B. Return the result in cell A1.

Bonus. The lifetimes of systems A and B are distributed exponentially with respective mean lifetimes 1.28 - 104 hours and 1.67. 104 hours. The systems are put in service at the same time. Write a VBA code to estimate the probability that system A will last longer than system B. Return the result in cell Al. (20) Bonus. The lifetimes of systems A and B are distributed exponentially with respective mean lifetimes 1.28 - 104 hours and 1.67. 104 hours. The systems are put in service at the same time. Write a VBA code to estimate the probability that system A will last longer than system B. Return the result in cell Al. (20)