c) The probability that a bumper car will find that there is at least one other bumper car already waiting to be repaired when it becomes disabled is the probability that the number of cars in the system is at least 2. In a M/M/1 queue like this one, this probability is ^2 = (2/2.4)^2 = 0.6944 or 69.44%. However, this includes the possibility that a car is be