### Two Children and the Tuesday Birthday Problem

09 Jan 2015 - by Douglas Zare

Backgammon players have a lot of practice working with objective probabilities and risks. These are things many people find counterintuitive. In many cases, backgammon players may be better able to avoid probability fallacies and errors. Let's look at a probability puzzle where many people have trouble, but where backgammon players might have an advantage.