The Following Table Shows the Probabilities of A, B, X

Essay

The following table shows the probabilities of A, B, X, and Y. Compute the joint probability table. Then calculate Pr(BY) and Pr(XB).
$\begin{array} { | c | c | c | } \hline & \mathbf { X } & \mathbf { Y } \\\hline \mathbf { A } & \mathbf { 3 2 5 } & 455 \\\hline \mathrm { B } & 416 & 104 \\\hline\end{array}$