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3. Suppose (X,Y) have joint pdf as the following, where k is an unknown constant. kxy 0 3. Suppose (X, Y) have joint pdfas the

3. Suppose (X,Y) have joint pdf as the following, where k is an unknown constant. kxy 0

3. Suppose (X, Y) have joint pdfas the following, where k is an unknown constant kry elsewhere a. Find k to makef(x.y) a valid joint pdf

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