You manage a large portfolio of Australian companies, composed of mining and manufacturing stocks. The mining stocks have an expected return of 5% and a standard deviation of 2.3%. The manufacturing stocks have an expected return of 8% and a standard deviation of 4.2%. The correlation coefficient between the two assets is 0.24. i. Determine the portfolio's return and standard deviation giving equal weight to the mining and manufacturing portfolios. ii. What are the weights in the mining and manufacturing firm portfolios that give the lowest variance of the combined portfolio? iii. Would any risk-averse investors put all their investment in the mining companies?