(3 pts) It takes X minutes to service a car and the density function efX is given by x] = {Es2""; x 3: D D, x s: [II If A blings his ear in at time I] and B brings her car in at time 1D minutes, what is the probability that B's ear is read}? before A's ear is ready? Assmne that the service times are independent, and service begins upon the animal of the ear