The Shape of Data: Distributions: Crash Course Statistics #7

When collecting data to make observations about the world it usually just isn’t possible to collect ALL THE DATA. So instead of asking every single person about student loan debt for instance we take a sample of the population, and then use the shape of our samples to make inferences about the true underlying distribution our data. It turns out we can learn a lot about how something occurs, even if we don’t know the underlying process that causes it. Today, we’ll also introduce the normal (or bell) curve and talk about how we can learn some really useful things from a sample’s shape – like if an exam was particularly difficult, how often old faithful erupts, or if there are two types of runners that participate in marathons!

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Defusing the Population Bomb

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Is overpopulation real? Is Earth filling up with too many humans? How many people can Earth hold, anyway? As our species approaches 8 billion, human overpopulation is a major concern for many people. How can we reduce poverty and our impact on the environment? Do we need a forced one-child policy or something? Maybe not, because when we look at the science and history, populations seem to control themselves. This week we look at all these questions and more.

READ MORE:

https://ourworldindata.org

https://www.sciencemag.org/site/special/population/

http://science.sciencemag.org/content/346/6206/234

https://www.scientificamerican.com/article/are-malthus-predicted-1798-food-shortages/

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
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