Suppose Johnson & Johnson and Walgreen Boots Alliance have expected returns and volatilities shown here,, with a correlation of 21%. Calculate (a) the expected return and (b) the volatility (standard deviation) of a portfolio that is equally invested in Johnson & Johnson's and Walgreens' stock. a. Calculate the expected return. The expected return is %. (Round to two decimal place.) Data table (Click on the following icon in order to copy its contents into a spreadsheet.) Johnson & Johnson Walgreens Boots Alliance Expected Return 6.7% 10.9% Print Done Standard Deviation 14.1% 21.3%