In my first variable set, I chose to compare life expectancy to GDP per capita. Understandably, as life expectancy increased, so did GDP per capita. This makes sense because (generally) the higher the GDP, the more money available for health care, which can equate to longer lives. In the second variable set, I compared total fertility rate to GDP. As total fertility increased, GDP decreased. High total fertility rates are usually associated with less developed countries that usually have low GDP, that's why total fertility rate increases while GDP decreases.
Generally, the countries with the highest fertility rates are in Africa and the Middle East. I think this is because kids in these regions are an economic benefit since they can provide labor. The people with the longest life expectancy are usually from rich Asian countries like Japan, South Korea, and Singapore. This is the case because of their mostly healthy diet and lifestyle The countries with the highest GDP per capita's are generally in core countries in western Europe, North America and East Asia because these are the regions that have the biggest impact financially on the global market.
