There is a phenomenon that drives everything from the stock market to orange juice prices. By taking the average of all guesses about something, you can collectively get the right answer. This was put to the test at a county fair using a cow named Penelope. People guessed the weight of a cow and the average of over 17,000 guesses was within 5 percent of Penelope’s actual weight. This story about the wisdom of crowds will help you explain how the stock market works.
Story Length: 4:17
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