We have 2 machines, which are working in 0.75 precent if it wasn't out o order the day before. When a machine goes out of order, it takes 2 days to fix her up. let Xn be the num of working machines in day n (including those who were back from repairing).
Now I know this situation doesn't describe a markov chain, because the dependence on the 2 days repairing time. How would you describe the situation to make it a markov chain?
Thanks!