3. A company produces battery packs that have the following sales profile: Demand (Units) 12,000 13,000 18,000 21,000 Prob. Sale Unit Price $ Prob 12.50 13.75 15.00 21.25 0.25 0.30 0.20 0.25 0.15 0.30 0.35 0.20 Calculate the Mean and the Standard Deviation (SD) of their gross income from the sale of this product. Their production cost is estimated to be $165,000, regardless of the number of units produced. What is the probability that they will loose money by producing these battery packs