Can some help me with this? f(x,y) = kxy 0<x<1; 0<y<1 0 else If X and Y have a joint pdf Find the value of k that makes f(x,y) to be a pdf Find P(X<0.5, Y<0.75)
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1. You want $\displaystyle \int _0 ^1 \int _0 ^1 kxy : dy : dx = 1$. So you evaluate the integral and then solve for k. 2. Integrate $\displaystyle \int _0 ^{0.5} \int _0 ^{0.75} kxy : dy : dx$ for the k you found in part 1.
thanks
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