13. Comprise the Efficient Frontier of the portfolio based on the above two stocks. Discuss the concepts of Average versus a linear trend of the daily returns, the relationship between the Standard Deviation and the Variance, the relationship between the Variance and the Covariance, the relationship between Correlation and the Covariance/Standard Deviations and Correlation and R Squares. From the previous question provide the systemic and idiosyncratic risk of the two corporations.