The Following Table Shows the Number of Students in Three

The following table shows the number of students in three different degree programs and whether they are graduate or undergraduate students:

a.What is the probability that a randomly selected student is an undergraduate?
b.What percentage of students is engineering majors?
c.If we know that a selected student is an undergraduate, what is the probability that he or she is a business major?
d.A student is enrolled in the Arts and Sciences school. What is the probability that the student is an undergraduate student?
e.What is the probability that a randomly selected student is a graduate Business major?