The Student body of a large university consists of 30 Busine

The Student body of a large university consists of 30% Business majors. A random sample of 20 students is selected.

a. What is the probability that among the students in the sample at least 10 are Business majors?

b. What is the probability that at least 16 are not Business majors?

c. What is the probability that exactly 10 are Business majors?

d. What is the probability that exactly 12 are not Business majors? Show work please so I understand