Consider continuous-time Markov chain with a state space {1,2,3} with A1 = 2, A2 = 3, A3 = 4 The underlying discrete transition probabilities are given by P = [0 0.5 0.5; 2/3 0 1/3; 0.5 0.5 0] (a) Find the generator matrix. (b) Find the stationary distribution of this CTMC.