You have a portolio wath a standard deviation of 27% and an expected retum of 15%. You are considering adding one of the two stocks in the following table: If after adding the atock you witl have 25% of you money in the now stock and 75% of your money in yeur existing portholie, which one should you add? standard deviation of the portollo with stock A is 6. (Pound to two decimal places.) Data table (Click on the following icon in order to copy its contents into a spreadsheet.)