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Basic Probability Intuition

Confront the scenarios where human intuition about probability fails most dramatically, from emergency rooms to courtrooms to casinos. These puzzles expose systematic flaws in how our brains estimate likelihood, teaching you to recognize when your gut feeling is being hijacked by cognitive shortcuts. Mastering these foundations will change how you evaluate risk in medical decisions, financial choices, and everyday life.

beginner15 minProbability & Statistics
Question 1 of 617% Complete

In the Monty Hall problem: You're on a game show and pick Door 1. The host, who knows what's behind every door, opens Door 3 to reveal a goat. He offers you the chance to switch to Door 2. A friend says, 'It's 50/50 now -- two doors, one car, so it doesn't matter.' What should you do?