Homework: Homework 4 Question 16, P 11-18 (book/static) Part 1 of 3 HW Score: 35.48%, 11 of 31 points Points: 0 of 1 Next question 3 The last four years of returns for a stock are as follows: Year 1 2 Return -3.6% 27.7% 12 2% a. What is the average annual return? b. What is the variance of the stock's returns? c. What is the standard deviation of the stock's returns? 3.9% a. What is the average annual return? The average return is % (Round to two decimal places.)