A. Person repairing radios finds that the time spent on the radio set has expontial distribution with mean of 20minutes, If the radios are repaired in order which they Come in and the arrival is approxly. 15 For 8 hrs day. Possion with an aver rate of You are requined to calculate; Repair man's expected Ideal time each day How Many Jobs are ahead of the average set ob Just Just before brought in. 1​