Intro You've collected the following historical rates of return for stocks A and B Year (t) at 2016 0.02 0.04 2015 0.08 0.05 2014 0.15 0.07 Attempt 175 for 10 pts Part 1 What was the average annual return for stock A 0.0833 Correct TA 0.02 +0.08 +0.15 = 0.0833 18 Attempt 15 for 10 pts Part 2 What was the average annual return for stock 87 0.0533 Correct 11 12 13 0.04 0.05 0.07 -0.0533 - Attempt 2/5 for 10 pts Part 3 What was the standard deviation of returns for stockA? 3 decimals Submit Part 4 . Attempt to for 10 pts What was the standard deviation of returns for stocka? A decimal Submit