11. Suppose Johnson & Johnson and Walgreen Boots Alliance have expected returns and volatilitie shown here, with a correlation of 21%. Calculate (a) the expected return and (b) the volatility (standard deviation) of a portfolio that consists of a long position of $9,500 in Johnson & Johnson and a short position of $2,500 in Walgreens a. Calculate the expected return. The expected return is %. (Round to one decimal place.) b. Calculate the volatility (standard deviation). The volatility is %. (Round to one decimal place) 1: Data Table (Click on the icon located on the top-night comer of the data table below in order to copy its contents into a spreadsheet.) Johnson & Johnson Walgreens Boots Alliance Expected Return 6.4% 10.2% Standard Deviation 16.6% 19.1%