The formula to calculate the probability of an event A happening is given as
[tex]P(A)=\frac{Number\text{ of times A happened}}{Number\text{ of total outcomes}}[/tex]
To find the probability of picking a sophomore, we need to get the necessary parameters:
Number of sophomores: 77
Total number of students: 137
Therefore, the probability is calculated as
[tex]\begin{gathered} P(\text{sophomore)}=\frac{77}{137} \\ P(\text{sophomore)}=0.56 \end{gathered}[/tex]
The correct option is OPTION A (0.56).
