The Demand for a Product Varies from Month to Month

Short Answer

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.
$$\begin{array} { c c } \text { x } & \text { fx) } \\\text { Unit Damand } & \text { Prabability } \\0 & 0.10 \\1,000 & 0.10 \\2,000 & 0.30 \\3,000 & 0.40 \\4.000 & 0.10\end{array}$$
a. Determine the expected number of units demanded per month.
b. 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?