
Choiceology with Katy Milkman
No Mean Feat: With Guests Albert Chen & Elizabeth Tipton
Sep 25, 2023
Sports enthusiasts Albert Chen and basketball prodigy Elizabeth Tipton discuss the Sports Illustrated cover jinx and how extraordinary performances can mislead people about future results. They explore regression to the mean, luck vs. skill in bowling, and mean reversion neglect.
33:46
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Quick takeaways
- Regression to the mean is a statistical phenomenon where extreme performance tends to revert back to the average over time, leading to misconceptions and biased thinking.
- The Sports Illustrated cover jinx is not a superstition but a result of regression to the mean, where athletes featured on the cover after exceptional performances tend to regress closer to their average performance level.
Deep dives
Understanding the Regression to the Mean Phenomenon
Regression to the mean is a statistical phenomenon where measures taken at two or more time points tend to move towards the average. The luck or random variation involved in measuring individuals can lead to extreme performance reverting back to the mean. This phenomenon is often neglected when interpreting data, which can lead to misconceptions. Examples, such as the Sports Illustrated cover jinx, demonstrate how outliers in performance tend to regress back to average performance over time.
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