(Standard deviation) Given the following probabilities and returns for Mik's Corporation, find the standard deviation. PROBABILITY RETURNS 0.05 8% 0.40 3% 0.50 18% 0.05 11% (Click on the icon located on the top-right comer of the data table above in order to copy its contents into a spreadsheet.) Mik's standard deviation is %. (Round to two decimal places)