Question
1. Let pxy (x, y) = c(x + y) for x = 1, 2, 3, y = 1, 2, and zero otherwise (a) Find the constant c. (b) What is
px.y(1, 1)? (c) What is pxy(2.5, 1.75)? (d) What is F xy(2.5, 1.75)? (e) What is Fx.y(5' 1.5) (f) What is Fx,y (0,4) (g) What is Fx.y(4,4)? (h) What is px(2)? (i) What is py(1)? (j) What is F, (2.5)?
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