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TED-Ed

Check your intuition: The birthday problem - David Knuffke

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14,232 Questions Answered

TEDEd Animation

Let’s Begin…

Imagine a group of people. How big do you think the group would have to be before there’s more than a 50% chance that two people in the group have the same birthday? The answer is … probably lower than you think. David Knuffke explains how the birthday problem exposes our often-poor intuition when it comes to probability.

Watch the video and finish the Think section to complete the lesson.


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Meet The Creators

Educator
David Knuffke
Director
Biljana Labović
Script Editor
Eleanor Nelsen
Animator
Kaitlyn Carroll
Sound Designer
Weston Fonger
Associate Producer
Jessica Ruby
Content Producer
Gerta Xhelo
Editorial Producer
Alex Rosenthal
Narrator
Addison Anderson

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