(Answered) Question more twins a group of 5 women became pregnant

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Question: More twins. A group of 5 women became pregnant while undergoing fertility treatments with the drug Clomid, discussed in Exercise. What is the probability that

a) none will have twins?

b) exactly 1 will have twins?

c) at least 3 will have twins?

Exercise: Twins. 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

a) at least one will have twins if none were taking a fertility drug?

b) at least one will have twins if all were taking Clomid?

c) at least one will have twins if half were taking Clomid?

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