The following are the loss amount in thousands of dollars from three portfolio of insurance policies
Portfolio Y1: 43 30 27 24
Portfolio Y2: 43 30 27 24
Portfolio Y3: 43 30 27 24
Portfolio Y4: 43 30 27 24
Determine
i) The mean vectors of the portfolios
ii)Variance covariance matrix of the portfolios
iii) Correlation matrix of the portfolios
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