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Use the variance-covariance matrix below for securities X, Y, and Z to answer the following questions 24 -10 9 -10 75. 3 9 3. 12

Use the variance-covariance matrix below for securities X, Y, and Z to answer the following questions

24 -10 9

-10 75. 3

9 3. 12

  1. Calculate the variance of a portfolio with 30% invested in X, 30% invested in Y, and 40 % invested in Z.
  2. Calculate the covariance of a portfolio that has 12% in asset 1, 75% is asset 2, and 13% in asset 3 with a second portfolio that has 125% in asset 1, -10% in asset 2, and -15% in asset 3.

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