Generate a context and a hypothesis.
Context: How to conceive twins<br>Recognize that only about 3% of births result in multiple babies. Twins are not the norm when it comes to childbirth. While some things raise your chances of having twins (or other multiples, like triplets) slightly, it's a good idea to expect just 1 baby and be pleasantly surprised if you end with 2 or more.

Hypothesis: Very few births result in multiple babies.