the correct answer to the question is posted! please show me the correct steps to get to the correct answer. please make sure you show exactly how you're getting your calculation numbers

Use the information below to calculate the standard deviation of your portfolio to 1 decimal in percent form. Note 12.31% standard deviation should be entered as "12.3" Stock 1 Weights 64 % Expected Return 6% Stock 2 The rest if it 13 % Standard Dev. 9% 21 % Correlation between stocks1 and 2 0.4 15.4 11.19 margin of error +/-0.5 This one is the long equation in 3 parts