Assume that you have half your money invested in Times Mirror, the media company, and the other half invested in Unilever, the consumer product giant. The expected returns and standard deviations on the two investments are summarized below:

----------------------Times Mirror------ Unilever

Expected Return 14%------------- 18%

Standard Deviation 25% ------------40%

Estimate the variance of the portfolio as a function of the correlation coefficient (Start with 1 and increase the correlation to +1 in 0.2 increments).