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US Median Age vs US Military Expenditure
US Median Age and US Military Expenditure correlate at r = -0.83 over 64 years (1960–2023), p < 0.0001. With the time trend removed, r = +0.14. Likely spurious (shared time trend).
Verdict: Likely spurious (shared time trend). Both series mostly just trend over time. After removing that trend the correlation collapses to 0.14 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.83
- p-value
- < 0.0001
- Years compared (n)
- 64 (1960–2023)
- 95% confidence interval
- -0.90 to -0.74
- Correlation with the time trend removed
- +0.14
Sources
- US Median Age (years): Our World in Data. US Median Age (Our World in Data: Median age).
- US Military Expenditure (% of GDP): World Bank. US Military Expenditure (World Bank indicator MS.MIL.XPND.GD.ZS).
Related pairs
- US Median Age vs US Adult Obesity (r = +0.99)
- US Median Age vs US Population (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Median Age (r = +0.97)
- US Median Age vs US Internet Users (r = +0.97)
- US Internet Usage vs US Median Age (r = +0.97)
- US Median Age vs US GDP per Capita (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.