AIR MATH

Math Question

A survey asked college juniors and seniors if they could study abroad, would they choose London, Pairs, or Madrid. The results appear below. What is the probability that a student chosen at random is a senior, given that the student selected Paris? \begin{tabular}{|c|c|c|c|c|} \hline \multirow{2}{*}{ College Level MB } & \multicolumn{4}{|c|}{ Foreign Country for Study } \\ \cline { 2 - 5 } & London & Paris & Madrid & Total \\ \hline Junior & 90 & 80 & 70 & 240 \\ \hline Senior & 80 & 95 & 95 & 270 \\ \hline Total & 170 & 175 & 165 & 510 \\ \hline \end{tabular}

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