Perplexing the Web, One Probability Puzzle at a Time – Quanta Magazine https://www.quantamagazine.org Illuminating science Mon, 16 Sep 2024 14:10:47 -0400 en-US hourly 1 https://wordpress.org/?v=6.2 Perplexing the Web, One Probability Puzzle at a Time https://www.quantamagazine.org/perplexing-the-web-one-probability-puzzle-at-a-time-20240829/ https://www.quantamagazine.org/perplexing-the-web-one-probability-puzzle-at-a-time-20240829/#respond Thu, 29 Aug 2024 14:00:56 +0000 https://www.quantamagazine.org/?p=140190 The post Perplexing the Web, One Probability Puzzle at a Time first appeared on Quanta Magazine

]]> In late January, Daniel Litt posed an innocent probability puzzle on the social media platform X (formerly known as Twitter) — and set a corner of the Twitterverse on fire. Imagine, he wrote, that you have an urn filled with 100 balls, some red and some green. You can’t see inside; all you know is that someone determined the number of red balls by picking a number between zero and 100 from a hat.

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