Probability of an event A given B is;
[tex]\begin{gathered} Pr(A|B)=\frac{Pr(A\cap B)}{Pr(B)} \\ \end{gathered}[/tex]Thus Probability of selecting a Junior student given it is a male is;
[tex]\begin{gathered} Pr(J|M)=\frac{Pr(J\cap M)}{Pr(M)} \\ Pr(J|M)=\frac{2}{14}=\frac{1}{7} \end{gathered}[/tex]The probability of selecting a junior student given it is a male is 14%.