Calculate (a) the expected return and (b) the volatility (standard deviation) of a portfolio that consists of

Question:

Calculate (a) the expected return and (b) the volatility (standard deviation) of a that consists of a long position of $10,000 in Johnson & Johnson and a short position of $2000 inWalgreen€™s.

Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...