Use the following information to answer questions 20-24. You would like to form a portfolio. You have the following information: ARABTEC stock has an average return of 8% and a standard deviation of 15%. DEYAAR stock has an average return of 13% and a standard deviation of 20%. The correlation between ARABTEC and DEYAAR is 10%. The risk free rate is equal to 3%. Question 20 (5 points): If you invest 30% in ARABTEC and the remaining part in DEYAAR, what will be your portfolio return? Question 21 (5 points): If you invest 60% in ARABTEC and the remaining part in DEYAAR, what will be your portfolio standard deviation? Question 22 (5 points): What is the minimum variance portfolio weight in ARABTEC? Question 23 (5 points): What is the optimal risky portfolio weight in Arabtec? Question 24 (5 points): What is the return of the optimal risky portfolio