There are 13 freshmen and 16 sophomore students in a classroom We randomly select two students Suppose the students were selected with replacement a If the first student was a freshman what is the probability that the 2nd student is also a freshman b If the first student was a sophomore what is the probability that the 2nd student was a freshman Suppose the students were selected without replacement c If the first student was a freshman what is the probability that the 2nd student is also a freshman d If the first student was a sophomore what is the probability that the 2nd student was a freshman