The demand for a product varies from month to month. Based on the past year's data, the following probability distribution shows MNM company's monthly demand.
x f(x)
Unit Demand Probability
0 0.1
1,000 0.1
2,000 0.3
3,000 0.4
4,000 0.1
Determine the expected number of units demanded per month.
Each unit produced costs the company $8.00, and is sold for $10.00. How much will the company gain or lose in a month if they stock the expected number of units demanded, but sell 2000 units?