Crowdsourcing Education

In 1987, professor Jack Treynor held up a jar filled with jelly beans to his finance class. All 56 students chimed in with their guesses on how many beans were in the jar. The group’s estimate averaged to 871, 2.5% off of the correct answer of 850 and closer than all but one of the participants’ guesses. The implications? That a group’s ability to perform a task is largely superior to an individual’s.

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