A professor thinks students who live on campus are more likely to get A's in the probability course.To check this theory, the professor combines the data from the past few years:600 students have taken the course120 students have gotten As,200 students lived on campus,80 students lived off campus and got As.Does this data suggest that "getting an A" and "living on campus" are dependent or independent?(Later in the course, we will study statistics, which will allow us to make judgments like t