Question 21 If an investment experiences the following series of returns, what is the standard deviation of the investment? 1 2 3 5 0.51 0.56 0.6 0.66 Year Return Year Return 8% 9% 6 9% 7 9% 9.5% 8 9.5% 10% 9 8.5% 8.75% 10 9% 4 pts