Suppose Johnson & Johnson and Walgreen Boots Alliance have expected returns and volatilities shown here the table below ,with a correlation of 20%.Calculate the expected return and the volatility (standard deviation) of a portfolio consisting of Johnson & Johnson's and Walgreens' stocks using a wide range of portfolio weights. Plot the expected portfolio return as a function of the portfolio volatility. Using your graph, identify the range of Johnson & Johnson's portfolio weights that yield efficient combinations of the two stocks.

Expected Return		Standard Deviation
Johnson & Johnson	9%		18%
Walgreens Boots Alliance	10%		21%

Find the expected return and volatility of the portfolio consisting of 50% of Johnson & Johnson's stock and 50 % of Walgreens' stock.

The expected return of the portfolio is .%. (Round to one decimal place.)

The volatility (standard deviation) of the portfolio is %. (Round to one decimal place.)

Find the expected return and volatility of the portfolio consisting of 60% of Johnson & Johnson's stock and 40% ofWalgreens' stock.

The expected return of the portfolio is .%. (Round to one decimal place.)

The volatility (standard deviation) of the portfolio is %. (Round to one decimal place.)

Find the expected return and volatility of the portfolio consisting of 70% of Johnson & Johnson's stock and 30% ofWalgreens' stock.

The expected return of the portfolio is ..%. (Round to one decimal place.)

The volatility (standard deviation) of the portfolio is ..%. (Round to one decimal place.)

Plot the expected portfolio return as a function of the portfolio volatility.