Virginia's Ron McPherson Electronics Corporation retains a service crew to repair machine breakdowns that occur on an average of lambda = 2 per 8-hour workday (approximately Poisson in nature). The crew can service an average of mu = 6 machines per workday, with a repair time distribution that resembles the negative exponential distribution. a) The utilization rate of this service system = nothing (round your response to two decimal places). b) The average downtime for a broken machine = nothing days (round your response to two decimal places). c) The average number of machines waiting to receive service at any given time = nothing machines (round your response to three decimal places). d) The probability that there is more than one machine that is in the system = nothing (round your response to three decimal places). The probability that there are more than two machines that are in the system = nothing (round your response to three decimal places). The probability that there are more than three machines that are in the system = nothing (round your response to three decimal places). The probability that there are more than four machines that are in the system = nothing (round your response to three decimal places).