A. 0.25 B. 0.30 C. 0.45 D. 0.50 E. 0.55 F. None of the above Q4: For the following system (M/M/1):(GD/6/co), when arrival rate is 3 customers per hour rate is 3 customers per hour, then the expected number of customers in the system is: A. O B. 3 C. 4 D. 6 E. 8 F. 00 G. None of the above Q5. All Markov chain transition matrices have the same number of rows as columns. A True B. False Q6: In an all-integer linear program, A. All objective function coefficients must be integer B. All right-hand side values must be integer C. All objective function coefficients and right-hand side values must be integer D. None of the above