Intro You've collected the following historical rates of return for stocks A and B: Year (t) l'At Bt 2016 0.02 0.02 2015 0.08 0.05 2014 0.12 0.07 Attempt 1/5 for 2 pts. Part 1 What was the average annual return for stock A 3+ decimals Submit Attempt 1/5 for 2 pts. Part 2 What was the standard deviation of returns for stock A? 3+ decimals Submit