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In: Statistics and Probability

In this exercise, we examine the effect of combining investments with positively correlated risks, negatively correlated...

In this exercise, we examine the effect of combining investments with positively correlated risks, negatively correlated risks, and uncorrelated risks. A firm is considering a portfolio of assets. The portfolio is comprised of two assets, which we will call ''A" and "B." Let X denote the annual rate of return from asset A in the following year, and let Y denote the annual rate of return from asset B in the following year. Suppose that E(X) = 0.15 and E(Y) = 0.20, SD(X) = 0.05 and SD(Y) = 0.06, and CORR(X, Y) = 0.30.

(a) What is the expected return of investing 50% of the portfolio in asset A and 50% of the portfolio in asset B? What is the standard deviation of this return?

(b) Replace CORR(X, Y) = 0.30 by CORR(X, Y) = 0.60 and answer the questions in part

(C). Do the same for CORR(X, Y) = -0.60, -0.30, and 0.0.

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