The average, or arithmetic mean, enjoys a prominent position in most analysis toolkits, and for good reason. It’s a simple and elegant way to compress a large data set into a single, descriptive number. It’s ever-present in the alphabet soup of “key performance indicators” that highlight most gaming dashboards: ARPU (average revenue per user), ARPPU (average revenue per paying user), and average session length, to name a few. But the average is not without its limitations. If your data set is no