it is about markov chain

Question 5 (25 {its}: SuperX is a company who sells welding machines to factories. The company observes the number of welding machines on its hand (call it j) at the beginning of a month. If at the beginning of the month, j 5 2 then the company orders 4 j machines (so, the number of inventories is completed to 4), otherwise no machine is ordered. It is known that delivery of all ordered machines is immediate. Demand during a month for the welding machines follows Poisson distribution with 3:2. Aer lllling these demands, the company observes the inventory level at the beginning of the next month. Dene states and construct the one step transition matrix for the above process