What is the Standard Deviation of Portfolio A and B?

You have a porttolio with a standard deviation of 28% and an expected retum of 17%. You are considering adding one of the fwo stocks in the following table: If atter adding the stock you will have 25% of your money in the new stock and 75% of your money in your exisfing portiolio, which one should you add? Standard deviation of the portfolio with stock A is \%. (Round to two decimal places) Data table (Clck on the folowing icon 8 in order to copy his comtents into a spreadsheet)