6. You own a portfolio of investment in two stocks, A and B. Total investment in stock A is valued at $6,500 and has an expected return of 11.2 percent. Stock B has an expected return of 8.1 percent. Total investment in stock B is $3,500. What is the expected return on the portfolio? (0.65*0.112)+(0.35*0.081)= 0.10115*100% =10.12%

7. Continuing from question 6, the standard deviation of stock A is 15%, while the standard deviation of stock B is 12%. If the two stocks have a correlation of -0.5, what is the standard deviation of the portfolio? How does this portfolio standard deviation compare to the standard deviation of stock A and stock B separately? Why is the portfolio standard deviation lower?

need answer for question 7.