Instructions: Each problem is worth of 20 points. In all the problems, you need to show all your work clearly. Whenever possible, show the problem using a timeline. If you just write some numbers without showing the appropriate headings for each number, you will NOT RECEIVE any credit. Use both sides of a page, in case you run out of space. You have wealth of $10,000 to invest. You decided to create a portfolio P by investing $4,000 in nvestment A and the remaining $6,000 of your wealth in Investment B. What is the expected eturn of your portfolio P? What is the risk, as measured by the standard deviation of return, of our portfolio P