Planet Money

Planet Money

How much does this cow weigh? (Classic)

April 10, 202418 min

0:0017:37

About this episode

This episode originally ran in 2015. About one hundred years ago, a scientist and statistician named Francis Galston came upon an opportunity to test how well regular people were at answering a question. He was at a fair where lots of people were guessing the weight of an ox, so he decided to take the average of all their guesses and compare it to the correct answer. What he found shocked him. The average of their guesses was almost exactly accurate. The crowd was off by just one pound. This eerie phenomenon—this idea that the crowd is right—drives everything from the stock market to the price of orange juice. So, we decided to test it for ourselves. We asked Planet Money listeners to guess the weight of a cow. Spoiler: You can see the results here. This episode was hosted by David Kestenbaum and Jacob Goldstein. It was produced by Nadia Wilson and edited by Bryant Urstadt. Alex Goldmark is Planet Money's executive producer. Help support Planet Money and get bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

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Planet Money

Wanna see a trick? Give us any topic and we can tie it back to the economy. At Planet Money, we explore the forces that shape our lives and bring you along for the ride.

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