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Expected Return		Standard Deviation
Firm A's common stock	0.17	0.17
Firm B's common stock	0.18	0.24
Correlation coefficient	0.50

(Computing the standard deviation for a portfolio of two risky investments) Mary Guilott recently graduated from Nichols State University and is anxious to begin investing her meager savings as a way of applying what she has learned in business school. Specifically, she is evaluating an investment in a portfolio comprised of two firms' common stock. She has collected the following information about the common stock of Firm A and Firm B: a. If Mary invests half her money in each of the two common stocks what is the nortfolio's a. If Mary decides to invest 50% of her money in Firm A's common stock and 50% in Firm B's common stock and the correlation between the two stocks is 0.50, then the expected rate of return in the portfolio is %. (Round to two decimal places.) b. Answer part a where the correlation between the two common stock investments is equal to zero. c. Answer part a where the correlation between the two common stock investments is equal to + 1. d. Answer part a where the correlation between the two common stock investments is equal to - 1. e. Using your responses to questions ad, describe the relationship between the correlation and the risk and return of the portfolio

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