Answer
$\frac{18}{25}$
Work Step by Step
We know that $probability=\frac{\text{number of favourable outcomes}}{\text{number of all outcomes}}$
The total number of students (the number of all outcomes) is $350$
By using the table, the total number of students who attend a public college is $252$.
Hence the probability here is: $\frac{252}{350}=\frac{18}{25}$