On your return flight home from the long presidents day weekend, you are delayed by a repair to your airplane. suppose that the time (in hours) to repair an airplane is (a) what is the probability that a repair time exceeds 2 hours? be sure to show all of your (b) what is the conditional probability that a repairs takes at least 6 hours, given that its an exponentially distributed random variable with parameter λ = 1/2· work including integration, and tell me if you use any special properties. duration exceeds 3 hours? be sure to show all of your work including integration, and tell me if you use any special properties.