1. Elaborate on what is diversification. 2. In forming a portfolio of two risky assets, what must be true of the correlation coefficient between their returns if there are to be gains from diversification? Explain. 3. Asset A has an expected retum of 10% and a reward-to-variability ratio of 0.5. Asset B has an expected return of 14% and a reward-to-variability ratio of 0.4. A risk-averse investor would prefer a portfolio using the risk-free asset and A) asset A B) asset B C) no risky asset D) The answer cannot be determined from the data given. 4. Suppose that a stock and a bond have a zero correlation. How would the returns on the stock would move relative to the returns on the bond? 5. What does a complete portfolio consist of? What is "excess return"? 6. Which of the following is/are the identifiers of the optimal risky portfolio? [Select all those apply.] 1. The minimum-variance point on the efficient frontier II. The maximum-return point on the efficient frontier and the minimum-variance point on the efficient frontier III. The tangency point of the capital market line and the efficient frontier IV. The line with the steepest slope that connects the risk-free rate to the efficient frontier 7. The return and standard deviation of return on investment X are 20% and 10%, respectively. The return and standard deviation of return on investment Y are 8% and 5%, respectively. Covariance of returns on X and Y is 0.0030. What is the correlation coefficient between the returns on A and B