You've collected the following historical rates of return for stocks A and B: Part 1 Attempt 1/5 for 10 pts. What was the average annual return for stock A Part 2 Attempt 1/5 for 10 pts. What was the average annual return for stock B? Part 3 Attempt 1/5 for 10 pts. What was the standard deviation of returns for stock A ? Part 4 (w) Attempt 1/5 for 10 pts. What was the standard deviation of returns for stock B