Midlife crises are a common plot device in films, TV shows, and books. Like most psychological phenomena, though, they don’t always get it quite right.

How good are you with money? What about reading people's emotions? How healthy are you, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that...

Paul Andersen explains how physical systems remain stable and unstable over time. The sum total of interactions acting on the system determine its stability. Feedback loops are used to maintain stability but require energy. If the...

Some people say that buying an electric car is a great way to fight climate change - but if they use electricity that is made by burning fossil fuels, are they really more environmentally friendly than gas powered cars?

Test statistics allow us to quantify how close things are to our expectations or theories. Instead of going on our gut feelings, they allow us to add a little mathematical rigor when asking the question: “Is this random… or real?” Today,...

If you've ever taken a science or math class, you've probably seen the name "Bernoulli" -- and maybe you assumed it was one person, but that family had a squad of mathematicians.

Your mortal enemy has captured you and hooked you up to a bizarre experiment. He's extended your nervous system with one very long neuron to a target about 70 meters away. At some point, he's going to fire an arrow. If you can then think...

We need to save Jabril and John Green Bot’s movie nights. Jabril generally likes action movies and John Green Bot likes romantic movies, but they need to find something that they can both watch and enjoy together. Today, we’re going to...

If you looked at a male and female brain side by side, would you be able to see any differences?

We're finally to the end of our time together here on Crash Course Study Skills, so this week we're taking a more holistic approach to being the best learner you can. Part of taking care of your brain is taking care of your whole body,...

From 2016 to 2019, the world saw record-breaking heat waves, rampant wildfires, and the longest run of category 5 tropical cyclones on record. The number of extreme weather events has been increasing for the last 40 years, and current...

Can we keep drug prices low without hurting innovation? Well, drugs are a lot cheaper in Europe than in the US, and there's still plenty of innovation over there. So what's going on? It's called reference pricing, and it's pretty much...

We’ve seen so many interesting stories and important data coming out that we couldn’t cover just one thing this week!

We've done the US, Canada, and France. None of them are really socialized healthcare systems. To get at that, we need to go look at a system like that of the UK. More specifically, we're going to talk about England's National Health...

A number of Republican health care policy proposals that seemed out of favor in the Obama era are now being given new life. One of these involves Medicare, the government health insurance program primarily for older Americans, and is...

Aside from whatever a visit to the doctor costs you in money, it also costs you in time. A lot of it. Can we make that better? That's the topic of this week's Healthcare Triage.

One of the original justifications for Medicare is that older people have much higher health care needs and expenses. But there are a few common misunderstandings about health costs when people are older, including the idea that money...

In this shorts math video we will answer a standardized math test question where we find the median of a line plot. We will review that median is the middle value in a set of data WHEN the data is in order from least to greatest. We...

Most visitors to Singapore will tell you that the island has no distinct seasons; it’s hot, wet, and wetter. If you ask the locals, they’ll tell you that there are really two seasons—the wet monsoon season at the end of the year and the...

This is a practice exercise to implement a hypothesis testing that we have explored comprehensively so far.

This lesson will explore the famous mathematical law, the law of large numbers, and its misconceptions.

This lecture will explain the fundamental difference between a sample and a population in statistical data.

This brief introduction to the section outlines what you will be learning from this section, including the basics of statistics.

This video provides an elaborate solution to the practice exercise of the central limit theorem concept.