Please explain and give some details. Thank you!

There are two random variables X and Y. E(X) They have the below joint probabilities: Y 0 4 12 - 12 | 0.2 0.2 0.0 - 0.4 X 2 | 0.1 0.1 0.4 0.6 0.3 0.3 0.4 Without doing any calculations, answer this question: Is the covariance positive or negative? You must explain how you know this is true (without doing any calculations)