In Kerrich's urn experiment, suppose you get $1 for each red ball and $0 for each green one, and let X and Y represent the dollars you receive on the two draws within a single trial of the experiment. Exercise 1.34. Write down the probability distribution of X and Y in tabular form. Your table should have columns for X, for Y , and for the joint probability of X and Y , i.e. Pr[X, Y ]. Exercise 1.35. What are the expected values of X and of Y ? Exercise 1.36. What are the variances of X and of Y ? Exercise 1.37. What is the covariance of X and Y ?

I did 1.34, but I'm confused on how I can apply what I did to the other exercises. Here is my answer for 1.34:

X (first draw)	Y (second draw)	Pr[X,Y]	Event
1	1	1/6	RR (two red balls)
1	0	1/3	RG (red ball then green ball)
0	1	1/3	GR
0	0	1/6	GG

I'm probably overthinking this but whatever help you can provide would be great thank you!