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| rev | Admin | (Created page with "'''Solution: E''' The support of (X,Y) is 0 < y < x < 1. <math display = "block"> f_{X,Y}(x.y) = f(y |x) f_X(x) = 2 \quad \textrm{on that support.} </math> It is clear geom...") | May 7'23 at 20:43 | +644 |