6. A particle moves randomly along the interval [1, am], coming to rest only at the points with coordinates x = l, . . . , m. The particle's motion is described by a Markov chain such that P13 =1! Pagan1 =1! Pi.i+1 =Ps P5,:I1 = 9 (j = 2. - - - a m I). with all other transition probabilities equal to zero. Which states are persistent and which transient