Carla Vista Co. purchased machinery with a list price of $84000. They were given a 9% discount by the manufacturer. They paid $400 for shipping and sales tax of $4600. Carla Vista estimates that the machinery will have a useful life of 10 years and a residual value of $30000. If Carla Vista uses straight-line depreciation, annual depreciation will be

Consider the following information on stocks a, b, c and their returns (in decimals) in each state: state prob. of state a b c boom 20% 0.27 0.22 0.16 good 45% 0.16 0.09 0.07 poor 25% 0.03 0 0.03 bust 10% -0.08 -0.04 -0.02 if your portfolio is invested 25% in a, 40% in b, and 35% in c, what is the standard deviation of the portfolio in percent? answer to two decimals, carry intermediate calcs. to at least four decimals.