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Can you solve the frog riddle? - Derek Abbott

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TEDEd Animation

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You’re stranded in a rainforest, and you’ve eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, only the female frog produces the antidote. The male and female look identical, but the male frog has a distinctive croak. Derek Abbott shows how to use conditional probability to make sure you lick the right frog and get out alive.

You spot two frogs sitting next to each other. What is the probability that both are female?

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Meet The Creators

  • Educator Derek Abbott
  • Script Editor Alex Gendler
  • Director Outis
  • Narrator Addison Anderson

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