7. A Markov chain on states {0, 1, 2, 3, 4, 5} has transition probability matrix 1 0 0 0 0 0 3/4 1/4 0 0 0 1/8 7/8 0 0 0 P = 1/4 1/4 0 1/8 3/8 0 1/3 1/6 1/4 1/4 0 0 0 0 0 1 Find all communicating classes; which classes are transient and which are recurrent