The Monty Hall Problem: You Really Need to Switch

“Marbles….” by kevinjay. is licensed under CC BY-NC-SA 2.0

Story

Description of the problem (straight out of Wikipedia)

Let’s reason with 100 marbles (no math!)

Continuing with 100 marbles (with some math thrown in)

If this is not a 50–50 chance scenario, what is then?

If still not convinced:

Statistician and data scientist based in Boston, MA