If the joint probability is given by:

f(x,y) = (2x + 2y)/40, for x = 0, 1, 2, 3; y = 0, 1, 2, 3

a.) Find P(X>Y ):

b.) Find P(X > 2, Y 1):

c.) Is the equation valid? YES OR NO

d.) Find P(X 2, Y = 1):

e.) Find P(X + Y = 4):

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