In a class, 20 people live on campus and 4 people live off-campus. If we were to draw one student’s name from a hat, what is the probability that this student is living off-campus? (Enter your answer

In a class, 20 people live on campus and 4 people live off-campus. If we were to draw one student’s name from a hat, what is the probability that this student is living off-campus? (Enter your answer as a fraction.)