\begin{tabular}{|c|c|c|c|} \hline A & B & C & D \\ \hline problem 19 & \multicolumn{3}{|c|}{ Binomial Distribution } \\ \hline \multicolumn{4}{|l|}{ Given: } \\ \hlinen= & 5 & & \\ \hlinep= & 0.4 & & \\ \hline \multicolumn{4}{|l|}{ (A) P(X=3)=} \\ \hline \multicolumn{4}{|l|}{ (C) E(X)=} \\ \hline \multicolumn{4}{|l|}{ (D) StdDev(X)=} \\ \hline problem 20 & \multicolumn{3}{|c|}{ Poisson Distribution } \\ \hline mean = & \multicolumn{3}{|c|}{12 arrivals per 2 hours } \\ \hline \multicolumn{4}{|l|}{ (A) Lambda = } \\ \hline \multicolumn{4}{|l|}{ (B) P(X>=10)=} \\ \hline problem 21 & \multicolumn{3}{|c|}{ Exonentail Distribution } \\ \hline mean = & 15r & minutes & \\ \hline \multicolumn{4}{|l|}{ (A) Lambda = } \\ \hline (B) P(X