simultaneously. Agents who attempt to use the system when it is full are denied access; no waiting is allowed. (a) What is the probability that 0,1,2, and 3 access lines will be in use? (Round your answers to four decimal places.) P(0)=[ P(1)=[ P(2)= P(3)= (b) What is the probability that an agent will be denied access to the system? (Round your answers to four decimal places.) Pk=1 (c) What is the average number of access lines in use? (Round your answers to two decimal places.) W