Suppose you are given the following Australian stock markets data: expected return standard deviation Woolworths Coles ASX200 Australian stock markets monthly returns Coles 0.021 0.606 Woolworths 0.029 0.409 Woolworths 1 Correlation matrix Coles 0.09 1 ASX200 0.073 0.635 ASX200 0.1 0.7 1 What is the covariance between Woolworths and Coles returns? What is the covariance between Woolworths and ASX200 returns?