The Joint PMF of the pair of random variables(X1,X2) is given by:
f(x1,x2) = (x1x2/35) + (2×1/35) + (x2/35) +(2/35) ; x1=1,2 x2= 1,2
a. Are X1 and X2 Independent? Justify
b. What is the p= correlation(x1,x2) p= rho sign
The solution determines independence and finds the correlation.
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