Consider the following information for Viakom and Qualkom:
| State | Probability | Viakom | Qualkom |
|---|---|---|---|
| A | 0.3 | 10% | 20% |
| B | 0.4 | -10% | 15% |
| C | 0.3 | 20% | -10% |
| E(Ri) | 5% | 9% | |
| σi | 12.85% | 12.61% |
Assume (correctly or incorrectly) that the correlation coefficient between Viakom and Qualkom is -0.3. The volatility of a portfolio that invests 25% in Viakom and 75% in Qualkom is closest to:

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