Consider historical data showing that the average annual rate of return on the S&P/TSX Composite portfolio over the past 60 years has averaged roughly 8% more than the Treasury bill return and that the S&P/TSX Composite standard deviation has been about 20% per year. Assume these values are representative of investors' expectations for future performance and that the current T-bill rate is 5%. Calculate the expected return and variance of portfolios invested in T-bills and the S&P/TSX Composite index with weights as follows: (Enter your answers as decimals rounded to 4 places. Leave no cells blank - be certain to enter "O" wherever required.) Expected Return 0.1300 Variance 0.0400_Example WBills WIndex 0.0 1.0 0.2 0.8 0.4 0.6 0.6 0.4 0.8 0.2 1.0 0.0