Using the information below, what was the standard deviation of a portfolio that was equal- weighted (1/3 in each) in the three stocks? Year LAX return UWL return WIS return 2016 10% -4% 15% 2017 2% 10% 4% 2018 11% 16% 9% 2019 1% -3% 4% 2020 14% 19% 3% Enter your answer in percent form without the percent sign (e.g., for 20% enter 20 not 0.2), and round to the nearest two decimal places