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iii All patients who arrive to the Emergency Department (ED) of Bikini Clinic first go to Registration and then to Triage. Triage is staffed by two nurses: Bob and Patrick. Triage is using a single line and patients are served on a first-come-first-serve basis. Patients arrive at an average of one every 30 minutes following poisson arrival pattern (exponentially distributed inter-arrival times), and their requests take on average 20 minutes to be processed with standard deviation of 10 min at Triage. What is the approximate expected waiting time for a patient in minutes? Please keep the precision at 3 decimals