Economics homework help
Economics homework help. Suppose that a certain college class contains 38 students. Of these, 21 are sophomores, 26 are physics majors, and 8 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 she is also a sophomore?Write your responses as fractions.(If necessary, consult a list of formulas.)