D Question 1 Given the following joint probability mass function of two random variables X1 and X2 p(Ti. x1) 25 40 65 25 .04 .10 106 40 .10 25 .15 65 06 -15 .09 Are X1 and X2 Independent? O True O False D Question 2D Question 2 Determine the Correlation Coefficient between X1 and X2 (note same variables in previous Question) XI p(x. x]) 25 40 65 25 04 10 06 40 .10 25 .15 65 06 15 09 O0 O1 O 0.5 O -0.5 O None of the above D Question 3