Suppose that a certain college class contains 39 students. Of these, 14 are sophomores, 26 are physics majors, and 11 are neither, A student is selected at random from the class. (a) What is the probability that the student is both a sophomore and a physics major? (b) Given that the student selected is a physics major, what is the probability that he is also a sophomore? Write your responses as fractions. (If necessary, consult a list of formulas.) (=)0 (b) 0 X 5