Deep Water Financial of Duluth, Minnesota, has asked you to

Deep Water Financial of Duluth, Minnesota, has asked you to evaluate the stock price growth for a portfolio containing the following firms: General Motors, International Business Machines, Potlatch, Inc., Sea Containers, Ltd., and Tata Communications. Compute the means, variances, and covariance’s for the stocks. Using the data file Stock Price File, compute the mean and variance for a portfolio that represents the five stocks equally. Second, modify the portfolio by removing Potlatch and Sea Containers and including in the portfolio 40% General Motors, 30% International Business Machines, and 30% Tata Communications. Determine the mean and variance for the second portfolio and compare it with the first.
Stocks
Stocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing...
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...