Empirical Rule: Understanding the 68-95-99.7 Principle
Here’s something that surprised me when I first started working with data. Roughly 68% of all observations in a normal distribution fall within one standard deviation of the average. That’s not a guess or approximation—it’s a predictable pattern everywhere. I spent years analyzing data sets before the 68-95-99.7 rule really clicked for me. At first, it seemed like an abstract statistical concept you memorize for tests. But once I applied it to real-world scenarios, everything changed. This principle tells us… Read More »Empirical Rule: Understanding the 68-95-99.7 Principle