On average, how long does a UP Fitness client need to wait before using a trappy? To compute the time a a UP Fitness client need to wait before using a trappy, we use the formula: Wq=( m ActivityTime )( 1Utilization Utilization 2(m 1) 1 )( 2 (CV a 2 ) (CV p 2 ) ) Where: Activity time = 150 seconds = 2.5 minutes m = number of trappy machines = 4 Utilization = 0.8854 CVa = coefficient of variation of the inter-arrival times = 3 CVp = coefficient of variation of the processing times CVp = standard deviation of the usage times = 30 seconds service time of a trappy 150 seconds CVp = 0.2