Question: Suppose Johnson & Johnson and Walgreen Boots Aliance have expected returns and volatilties shown here, , with a correlation of 21%. Calculate (a) the expected

Suppose Johnson \& Johnson and Walgreen Boots Aliance have expected returns and volatilties shown here, , with a correlation of 21%. Calculate (a) the expected retum and (b) the volatity (standard deviation) of a portfolio that consists of a long position of $8,500 in Johnson 8 Johnson and a short position of $2,500 in Walgreens. (Click on the following icon b in order to copy its contents into a spreadsheet.)
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