12-20. The market value of a certain asset depends upon its useful life as follows:

Useful Life Market Value 3 years $18,000 4 years $12,000 5 years $6,000

a. The asset requires a capital investment of $120,000, and MARR is 15% per year. Use Monte Carlo simulation and generate four trial outcomes to find its expected equivalent AW if each useful life is equally likely to occur. (12.6)

b. Set up an equation to determine the variance of the asset’s AW. (12.5)