a) With relevant examples, describe the Kendall classification system. b) From first principles, show that: 22 L=- ( 2) 3 Marks 8 Marks c) Assuming an M/M/1 setup for a ladies' salon with an idling ratio at 17.25% driven by a service rate of 15 lady hair styles every two-and-a-half hours; i). Determine the salon's reasonable arrival rate. 3 Marks ii). What is the average no. of ladies at the salon establishment at any one point in time? 3 Marks iii). What is the average no. of ladies awaiting their turn? d) Comment on this salon's arrival rate. Expound. 3 Marks 2 Marks