## Why You Think Like a Bayesian but Were Taught Like a Frequentist From a chocolate bar with no price tag to a marketing mix model in PyMC, and the 200-year-old integral that stood in between. ## The Schoolroom Distortion Think back to your first high school statistics class. The teacher walks to the blackboard, draws a coin, and asks a seemingly simple question: “What is the probability of flipping heads?” You and everyone else in the room answer instantly: “Fifty percent.” If pressed for an explanation, you’d probably say that if you were to flip that coin an infinite number of times, half…