Is this one better?Please find the answer for the last one, thanks.

Virginia's Ron McPherson Electronics Corporation retains a service crew to repair machine breakdowns that occur on an average of a = 4 per 8-hour workday (approximately Poisson in nature). The crew can service an average of u = 6 machines per workday, with a repair time distribution that resembles the negative exponential distribution. a) The utilization rate of this service system = .67 (round your response to two decimal places). b) The average downtime for a broken machine = .5 days (round your response to two decimal places). c) The average number of machines waiting to receive service at any given time = 1.333 machines (round your response to three decimal places). d) The probability that there is more than one machine that is in the system = .449 (round your response to three decimal places). The probability that there are more than two machines that are in the system = (round your response to three decimal places). Virginia's Ron McPherson Electronics Corporation retains a service crew to repair machine breakdowns that occur on an average of a = 4 per 8-hour workday (approximately Poisson in nature). The crew can service an average of u = 6 machines per workday, with a repair time distribution that resembles the negative exponential distribution. a) The utilization rate of this service system = .67 (round your response to two decimal places). b) The average downtime for a broken machine = .5 days (round your response to two decimal places). c) The average number of machines waiting to receive service at any given time = 1.333 machines (round your response to three decimal places). d) The probability that there is more than one machine that is in the system = .449 (round your response to three decimal places). The probability that there are more than two machines that are in the system = (round your response to three decimal places)