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In: Accounting

The following data relates to the returns of three stocks.                         Mean return       &nb

The following data relates to the returns of three stocks.

                        Mean return                 Std deviation of returns

A:                    0.05                             0.093

B:                    0.35                             0.070

C:                    0.045                           0.085

The pairwise correlation coefficients between the returns of these three stocks are:

A and B = .137, A and C = .476, B and C = .422

Compute the returns and variances of equally weighted portfolios of the following stocks.

(a) A and B

(b) A, B and C

Show your workings. Comment on the results you got for (a) and (b) from the standpoint of risk diversification.

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