c number of servers = 1 λ arrival rate = 98 customers per hour for 2 servers i.e. 49 customers µ serving rate = 55 customers per server per hour ρ = λ/(cµ) = (98 ÷ 2)/ 55 = 0.8909 γ =λ µ = 0.8909 (= ρ in case of c = 1)
c number of servers = 1 λ arrival rate = 98 customers per hour for 2 servers i.e. 49 customers µ serving rate = 55 customers per server per hour ρ = λ/(cµ) = (98 ÷ 2)/ 55 = 0.8909 γ =λ µ = 0.8909 (= ρ in case of c = 1)