Suppose Johnson \& Johnson and Walgreen Boots Alliance have expected returns and volatilities shown here, with a correlation of 22%. 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.)