Additional Algo 14-5 Expected On-Hand Inventory - Poisson Demand Demand for a product follows the Poisson distribution with a mean of 0.9. If the lead time is 1 periods and the order up to level is 2. Use Table 14A.2. Additional Algo 14-5 Expected On-Hand Inventory - Poisson Demand Demand for a product follows the Poisson distribution with a mean of 0.9. If the lead time is 1 periods and the order up to level is 2. Use Table 14A.2