Intro You have $20,000 and want to invest it in the two stocks below and the risk-free asset, Treasury bills: B D 1 Stock A Stock B T-bills 2 Expected return 0.091 0.075 0.02 3 Variance 0.1089 0.0729 4 Standard deviation 0.33 0.27 5 Covariance 0.02673 Attempt 1/10 for 10 pts. Part 1 What is the Sharpe ratio of the optimal risky portfolio? 3+ decimals Submit Part 2 Attempt 1/10 for 10 pts. What is the standard deviation of a portfolio composed of $14,000 optimal risky portfolio and $6,000 risk-free asset? 3+ decimals Submit Part 3 Attempt 1/10 for 10 pts. Still assuming a portfolio composed of $14,000 optimal risky portfolio and $6,000 risk-free asset, how much money should you invest in stock B (in $)? 0+ decimals Submit