The Conjunction Fallacy

Can you see through this logical fallacy? I did, but then I also had my own ideas about Lucy, since the only math I ever excelled at was statistics and probability. That doesn't matter once you grasp the idea of the conjunction fallacy. Now that you know what it's called, you might be able to see it in the world around you, or the things people tell you. Me, I'm just tickled to find an educational video that is under ten minutes, which is rare these days.