Math with Bad DrawingsCartoon Archive

Information Theory, Explained

2021

A barbershop explanation of bits: two yes/no questions give four outcomes, or 2 bits (with a 'shave and a haircut' musical pun).

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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.

Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2021-01-01-information-theory-explained/ (CC BY-NC 4.0)
Transcript

[Title] "Information Theory, Explained" "Each yes/no answer is worth 1 bit of information."

"Do you want a shave?" Yes/No → 1 bit. "Do you want a haircut?" Yes/No → 1 bit.

"Shave and a haircut?" Yes & Yes / Yes & No / No & Yes / No & No → 2 bits

Topics
Computer Science › Information TheoryComputer Science › Binary & EncodingDiscrete Math › Counting Principle
Level
Middle SchoolHigh SchoolCollege
Themes
Visual ExplanationsPoems & SongsPuns