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% | 0.35 | 0.21 | 0.16 |
Good | 45% | 0.13 | 0.09 | 0.07 |
Poor | 25% | 0.02 | 0.03 | 0.03 |
Bust | 10% | -0.1 | -0.05 | -0.03 |
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.
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