Below are returns on the stock A and S&P500 index. All numbers are in decimals (-00222 is equivalent to-2.22%) S P500 0.0032 0.0058 0.0434 0.1081 -0.0121 0.1400 0.0368 0.0454 0.0577 -0.1374 0.0064 0.0186 0.0215 0.0222 -0.0048 0.1333 0.0765 -0.0161 0.1250 0.0145 0.0475 0.0430 -0.0260 0.0071 0.0249 0.0850 -0.0624 0.0933 0.0456 -0.0632 0.0450 0.0200 0.0280 0.0752 0.0365 0.0528 -0.0131 0.0009 0.0017 0.0985 What is the sample standard deviation of the S&P500 returns? Please write an answer in decimals. For example, 12.34% would be 0.1234. Also, round your answer to the fourth decimal