1. Compute the covariance and correlations between the three possible pairs.
2. Assuming equal weight between each pair of stocks, compute the mean daily return and the standard deviation of each of the three portfolios.
3. Create a risk-return scatterplot and enter the average daily return (vertical axis) and standard deviation (horizontal axis) for the three individual stocks and the three portfolios. Briefly discuss the results based on the material in this chapter.