Liz decides to invest in both Ireland and Latvia. She decides to 40% in and 60% in Ireland. Again only looking at the last 3 returnsanswer the following questions given that Latvia has an average return of 7.84\% and a standard deviation of 24.35\% 1.What is the portfolio return ? 2. what is the portfolio standard deviation ? 3. what is the covariance between the two indices ? ( show formulas )