Calculate

(a) the expected return and

(b) the volatility (standard deviation) of a portfolio that consists of a long position of $10,000 in Johnson & Johnson and a short position of $2000 in Walgreens.

suppose Johnson & Johnson and Walgreens Boots Alliance have expected returns and volatilities shown below, with a correlation of 22%.Appendix

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Johnson & Johnson Walgreens Boots Alliance Expected Return Standard Deviation 7% 10% 16% 20%