Consider the birth-and-death process with all n = 2 ( n = 0, 1, . . .), 1 = 2, and n

Consider the birth-and-death process with all λ_n = 2 (n = 0, 1, . . .), μ₁ = 2, and μ_n = 4 for n = 2, 3, . . . . 

(a) Display the rate diagram. 

(b) Calculate P₀ and P₁. Then give a general expression for P_n in terms of P₀ for n= 2, 3, . . . . 

(c) Consider a queueing system with two servers that fits this process. What is the mean arrival rate for this queueing system? What is the mean service rate for each server when it is busy serving customers?