Getting back on the bus

Back in college I wrote The Mathematics Behind "Ride the Bus", detailing the mathematics behind expected drinking while playing a game of luck skill where someone deals a card off the top of a shuffled deck one at a time, and you have to answer four questions about the next card: get one wrong, and you go back to the beginning. After looking it up again to expand the analysis to include median, I noticed and fixed some mistakes I made in my original simulation and while I'm at it, look into getting a closed form for the odds.

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