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Jeffrey Allers's avatar

Happy Birthday! My theory: because "heads" is always mentioned first ("Call it in the air, heads or tails," it is psychologically the more obvious choice. And "Rock" is chosen more because it's the easiest: you make no change to your hand, since both hands start out as a fist. So again, the fist "rock" is psychologically the most obvious (or safe) choice. What about "7"? Well, 7 has a long history as a very meaningful number in multiple cultures, so again, it's exposure to us in so many different areas of life could make it the first number that comes to mind. It's like my 19-year-old son who still remembers television jingles from his 7th-grade year in the U.S. If we hear something enough (or always first), we will subconsciously lean toward that answer as the most obious or safe one.

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Jeff Johnston's avatar

Is it possible that 1 and 10 are picked less because of how people interpret "between 1 and 10"?

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