If Cov(X,Y) = 639, then what is Cov(19X,10Y)?   Suppose Cov(X,Y) = 43. What is Cov(0.23X, 0.33Y)?    Suppose Cov(X,Y) = 872. What is Cov(0.99X, 0.86Y)?

INV 1 5aiv Suppose that you have the following utility function: U=E(r) – ½ Aσ2   and A=3 Suppose that you have $10 million to invest for one year and you want to invest that money into ETFs tracking the S&P 500 (US) and S&P/TSX 60 (Canada) index, which are often used as proxies for the US and Canadian stock markets, respectively, and the Canadian one-year T-bill. Assume that the interest rate of the one-year T-bill is 0.35% per annum.  You have found two ETFs that you are interested in. From a set of their historical data between 2001 and 2019, you have estimated the annual expected returns, standard deviations, and covariance as follows: ETFUS : E(r)= 0.070584 standard deviation =   0.173687 ETFCDA  : E(r)= 0.073763 standard deviation =  0.16816  Covariance between ETFUS and ETFCDA = 0.02397 What is the standard deviation for ETFCDA?