1. Compute the value-weighted average of 1/3 of the standard deviation of C and 2/3 of the standard deviation of D. Is it the same as the standard deviation of a CDD portfolio of 1/3 C and 2/3 D, in which your investment rate of return would be ![](https://book.transtutors.com/qimg/c4d184a5-ae18-4fd6-a7a1-91d8a4d6e32b.png)
2. What are the risk and reward of a combination portfolio that invests 40% in A and 60% in B?