a) Do teen birth rates differ a lot across different states in the United States? Given an example with numbers. (b) List three potential explanations for the variation in teen birth rates in the United States. (c) Which explanation, based on our class discussion, can explain the most variation in teen birth rates?

(d) Describe the evidence presented in class that supports your statement in (c). Remember, we used a chart to answer this. Hint: You only need to describe evidence on the first chart. (e) What was the driving force behind the explanation in (c)? What factor explains the evidence you described in (d)? Hint: This will be on the second chart we looked at.