When I was taking undergrad #genetics, my professor told us there was an easier way to do #punnet squares for dihybrid crosses and showed us a probability tree. That made a huge difference.
Gelman et al. (@[email protected])
An alternative Monty Hall problem. As with the usual Monty Hall problem, just set it up as a probability tree and it all works out https://statmodeling.stat.columbia.edu/2025/05/17/an-alternative-monty-hall-problem-as-with-the-usual-monty-hall-problem-just-set-it-up-as-a-probability-tree-and-it-all-works-out/