De Econometrist neemt een statistische kijk op de wereld.
It’s a calm and sunny day as Achilles is walking through the city when he comes across a tortoise that approaches him. “Hi Achilles, I have a rather interesting question for you.”, says the tortoise. “Would you like to have a sprint race against me? I will get a head start of about 100 metres, and you win if you manage to overtake me.”. The surprised Achilles asks if the tortoise is really willing to race. Achilles knows that he is light-footed and the tortoise, obviously, is a tortoise. The tortoise confirms that he is […]
In quantum mechanics, physicists have come up with all kinds of thought experiments. Quantum suicide and quantum immortalilty are examples of these thought experiments. They are a variation on the most famous problem in quantum mechanics, Schrödinger’s cat. This article will continue on with the many-worlds interpretation of quantum mechanics. In this article I will try to explain quantum immortality and what implications this might have on life and physics. A quick recap on Schrödinger’s cat The most famous thought experiment in quantum mechanics is called Schrödinger’s cat. In this experiment you observe a box. […]
In 1951 Edward Simpson published a paper discussing the interpretation of contingency tables. He discusses a phenomenon that is still occurring in today’s statistics. It is called after his own name, Simpson’s Paradox. An Example Simpson’s Paradox can be explained with a simple example. Suppose we are developing a vaccine to prevent a deadly virus from killing people. After years of research, we have finally found a vaccine that could work. Before it can be distributed across the world, it has to be tested first. To keep this example very simple, suppose that there are […]
A major outage led to the unavailability of Facebook and its subsidiaries WhatsApp, Instagram, and Messenger on Monday evening. The outage started at approximately 17:30 and lasted until 23:50. About 3.5 billion users of Facebook, WhatsApp, Instagram, and Messenger combined were unable to check their feeds and receive messages. This event led to a surge in activity on Twitter, of users who took to vent about the outage. Personally, this outage was a wakeup call on how much I truly rely on WhatsApp for most of my day-to-day communication. I realized how a corporate entity […]
Remember when you were young and you were too excited to sleep because you were going on vacation the next day? Your parents would wake you up very early the next morning because they wanted to drive all the way to the south of France in one day. Then, sometime during the road trip, your parents would miss an exit and have no idea where to go. Their printed out ‘ANWB routeplanner’ did not tell them what to do in case they made a wrong turn. Nowadays, most people do not have this stress anymore, […]
Did you ever go for a quick stop at the grocery store to buy some essential products that you needed to have and then came back home with way more food and drinks than you were planning to do so? Like most of us, you probably have done so. You didn’t need that bottle of Coca-Cola or those cookies, but the temptation was just too big. Right back at home, you might already be asking yourself why you even did it. Well, subliminal messages might be the reason you just bought that extra drink you […]
The raven paradox Econometricians face difficult problems. One of the hardest problems one can encounter is a paradox. The raven paradox is such a problem and was first proposed by logician Carl Gustav Hempel. The paradox has its basis in statististics. In this paradox, inductive reasoning forms a contradiction with intuitive reasoning. This article will try to explain the paradox and its implications on statistics. The hypothesis In statistics we often want to test whether a given statement is true based on some kind of data sample. To perform a test we need to start […]
As soon as one receives one’s first passport, dreams of filling it with stamps start drifting into one’s mind. With about 190 nations in the world, there is no dearth of places to visit. But how long would it take to visit every single country? And how much would it cost? Creating a plan For many people in the world, it may be impossible to visit every country. For instance, American nationals are banned from entering North Korea and Iran. Despite these restrictions, the first step in any adventure is to set a detailed plan. Transportation, […]
The bank robbery that you planned with your best friend, Llyod Shapley, did not go as successfully as you both expected. Multiple things were working against you after you hid the stolen money and as a result you both ended up in the police station. Both taken to a separate interrogation room, the police officers are not sure who was the mastermind behind this robbery. As these officers were profound economics students in their younger years, they decided to give both of you two choices. Either you keep silent or you betray your best friend. […]
Now that the summer holiday is around the corner it is time to relax and unwind. After all the exams and deadlines of the past weeks, some downtime to enjoy the weather, lay down in the park, or go out with friends is well deserved. However, once the new year has started after weeks of just slacking around during the summer, studying or working can be quite challenging and tiresome. Your brain just isn’t used to be stimulated anymore. And even though you intended to stay healthy by sleeping a lot, eating healthy, and exercising, […]
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