Regression Toward the Mean: Why Extreme Performances Rarely Repeat Immediately
When an athlete or student scores far above their usual level, their very next attempt is statistically likely to land closer to their average.
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📊 Statistics & Odds
Royal Anthropological Institute (JSTOR)
Key Metric+20 XP
In what year did Francis Galton publish his landmark paper describing regression toward the mean?
Your guess:0 years
Key Insight
Because random luck tends not to repeat at extreme levels, subsequent outcomes drift back toward the true average.
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📊 Statistics
Statistics & Odds
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Why / How?
01
Scientific Mechanism
Identified by Francis Galton in 1886, any measurement combines skill plus random luck. An extreme peak usually includes unusually good luck, which rarely repeats back-to-back.
02
Why It Matters
Because random luck tends not to repeat at extreme levels, subsequent outcomes drift back toward the true average.
Verified Source
Royal Anthropological Institute (JSTOR)