15. Determine the project's standard deviation if the cash flow profile of the project is given in the table below. Assume that the cash flows are independent of each other. Outcome Probability Capital cost CF1 CF2 CF3 CF3 1 2 3 4 5 0.1 0.3 0.3 0.2 0.1 -10,000 -15,500 -14,500 -19,000 -20,000 6,200 6,400 6,400 6,200 7,200 7,600 7,300 7,200 6,200 6,200 6,200 5,000 8,300 8,300 8,300 8,300 9,300 8,300 5,200 5,200