CCompany the standard deviation for a portfolio of two risky investment) Mary Guillott recently graduated from Nichols State University and is anxious to begin investing her meager savings as a way of applaying what she has learned in business school. Specidically, she is evaluating an investement in aportfolio comprised of two firm's common stock. She has collected the following information about the common stock of firm A and B. A. If Mary invest had her money in each of the two common stocks, what is the portfolio's expected rate of return and standad deviation in portfolio return B. Answer part a where the correlation between the two common stockinvestments is equal to Zero. C. Answer part a where the correlation between between the two common stock investement is equal to +1, D. Answer part a where the correlation between the two common stock investement is equal to-1. E. Using your responses to question a -d , describe the realtionship between the correlation and the risk ND RETURN OF THE