A group of 5 women became pregnant while undergoing fertility treatments with the drug Clomid, discussed in Exercise 4. What’s the probability that
a) None will have twins?
b) Exactly 1 will have twins?
c) At least 3 will have twins?

Data From Exercise 4

In the United States, the probability of having twins (usually about 1 in 90 births) rises to about 1 in 10 for women who have been taking the fertility drug Clomid. Among a group of 10 pregnant women, what’s the probability that