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US Median Age vs US Tax Revenue

US Median Age and US Tax Revenue correlate at r = -0.32 over 52 years (1972–2023), p = 0.022. With the time trend removed, r = -0.13. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.022) and the association survives trend removal (detrended r = -0.13). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.32
p-value
0.022
Years compared (n)
52 (1972–2023)
95% confidence interval
-0.54 to -0.05
Correlation with the time trend removed
-0.13

Sources

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Correlation does not imply causation. How the verdict is worked out.