A portfolio's return is given by T'p = 0.5%A + 0.5TB, and A and B are...
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A portfolio's return is given by T'p = 0.5%A + 0.5TB, and A and B are jointly normal: E(TA) = 0.4, E(TB) = 0.4, var (ra) 0.16, var (rg) = 0.16, COV(TA,TB) = x. (Note that the covariance between 7A and TB is not specified. Its value is unknown and denoted by C.) a. Using the information above, what is the variance of the portfolio return? (2 marks) b. What is the variance of the portfolio if the correlation is equal to -1,0, and +1? (3 marks) A portfolio's return is given by T'p = 0.5%A + 0.5TB, and A and B are jointly normal: E(TA) = 0.4, E(TB) = 0.4, var (ra) 0.16, var (rg) = 0.16, COV(TA,TB) = x. (Note that the covariance between 7A and TB is not specified. Its value is unknown and denoted by C.) a. Using the information above, what is the variance of the portfolio return? (2 marks) b. What is the variance of the portfolio if the correlation is equal to -1,0, and +1? (3 marks)
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Related Book For
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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