There is a refrigerator manufacturing process. The daily demand for this product follows the following distribution:

x	53	64	75	86	97
P(x)	0.1	0.2	0.4	0.2	0.1

Where X is the daily demand. You want to know what is the best production policy, considering 60, 80, and 100 refrigerators per day taking into account the costs. The cost per shortage is $ 10 / refrigerator per day, and the cost to have a refrigerator in stock is $ 5 / refrigerator per day, and the cost to launch a production batch is $ 100. Consider every 3 days is released a batch production, the company works 30 days a month and want to simulate two months. (Compare policies using cost of production)