(For this problem, I recommend you work with Excel and copy your clean answer table here) You are considering two investment options, which are expected to behave differently in different political situations as follows: Calculate the expected rate of return, standard deviation, and coefficient of variation for Stock A, Stock B a portfolio consisting of 20% in A and 80% in B (call it, Portfolio 2080) Find: a) Expected returns (r-hat) for A, B, and Portfolio2080 b) Standard deviations for A, B, and Portfolio2080 c) Which of these investments options (A, B, or the Portfolio) would you choose and why