46. The covariance matrix for a portfolio is given below.
| Security | A | B |
| A | 480 | 140 |
| B | 140 | 600 |
49. The table below shows weighting and returns of different asset classes comprising a portfolio:
| Asset class | Asset allocation (weight) (%) | Asset class return (%) | Correlation with equities class (%) |
| Equities | 65 | 22 | 100 |
| Bonds | 30 | 8 | 30 |
| Cash and equivalents | 5 | 1 | 25 |
| Company | Expected Return | Standard Deviation |
| Gala Cement | 10% | 8% |
| Aqua Fertilizer | 17% | 20% |