You now know the language of statistics. You know how to identify variables, and you know how to classify your data using the NOIR framework. But all of that knowledge is useless if you don’t have any actual numbers to…
In Lesson 2, we learned that data comes in two main flavors: Qualitative (words/categories) and Quantitative (numbers). But in the 1940s, a psychologist named Stanley Smith Stevens realised that this simple split wasn’t enough. He noticed that even within “numbers,”…
In the previous lesson, we learned that data comes in different shapes and sizes—from qualitative categories to quantitative numbers. But in statistics, data rarely sits alone in an empty room. We gather data because we want to see how one…
In statistics, data is our raw material. But just like a chef can’t treat a piece of chicken the same way they treat a carrot, a statistician cannot treat all data the same way. If you try to calculate the…
When most people hear the word “statistics,” they picture endless spreadsheets, complex equations, and anxiety-inducing math tests. But at its core, statistics is not really about math. Statistics is the science of learning from data. We live in a chaotic,…