A processor is inspected weekly in order of determine its condition. The condition of the processor can either be perfect, good, reasonable or bad. A new processor is still perfect after one week with probability 0.7, with probability 0.2 the state is good and with probability 0.1 it is reasonable. A processor in good conditions is still good after one week with probability 0.6, reasonable with probability 0.2 and bad with probability 0.2. A processor in reasonable condition is still reasonable after one week with probability 0.5 and bad with probability 0.5. A bad processor must be repaired. The reparation takes one week, after which the processor is again in perfect condition. Formulate a Markov chain that describes the state of the machine and draw the transition probabilities in a network (graph or diagram).