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Can you solve the monster duel riddle? - Alex Gendler

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  • 4,599 Questions Answered
  • TEDEd Animation

Let’s Begin…

You’ve come a long way to compete in the great Diskymon league and prove yourself a Diskymon master. Now that you’ve made it to the finals, you’re up against some tough competition. In round one, you’ll face a single opponent and get to choose your disk before she picks from the remaining two. Can you choose the one that gives you the best chance of winning? Alex Gendler shows how.


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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Alex Gendler
  • Director Igor Coric
  • Narrator Addison Anderson
  • Sound Designer Stephen LaRosa
  • Music Stephen LaRosa
  • Director of Production Gerta Xhelo
  • Editorial Director Alex Rosenthal
  • Producer Bethany Cutmore-Scott
  • Fact-Checker Eden Girma
Additional Resources for you to Explore
Learn more about conditional probability and Bayesian inference at these links. The Monty Hall problem is another famous puzzle using similar principles.

Customize this lesson

Create and share a new lesson based on this one.

About TED-Ed Animations

TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Alex Gendler
  • Director Igor Coric
  • Narrator Addison Anderson
  • Sound Designer Stephen LaRosa
  • Music Stephen LaRosa
  • Director of Production Gerta Xhelo
  • Editorial Director Alex Rosenthal
  • Producer Bethany Cutmore-Scott
  • Fact-Checker Eden Girma

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