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US Air Passengers Carried vs US Military Expenditure
US Air Passengers Carried and US Military Expenditure correlate at r = -0.77 over 54 years (1970–2023), p < 0.0001. With the time trend removed, r = -0.19. 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 -0.19 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.77
- p-value
- < 0.0001
- Years compared (n)
- 54 (1970–2023)
- 95% confidence interval
- -0.86 to -0.64
- Correlation with the time trend removed
- -0.19
Sources
- US Air Passengers Carried (passengers): Our World in Data. US Air Passengers Carried (Our World in Data: Air transport, passengers carried).
- US Military Expenditure (% of GDP): World Bank. US Military Expenditure (World Bank indicator MS.MIL.XPND.GD.ZS).
Related pairs
- US Air Passengers Carried vs US Life Expectancy (r = +0.94)
- US Air Passengers Carried vs US Median Age (r = +0.94)
- US Air Passengers Carried vs US Population (r = +0.94)
- US Air Passengers Carried vs US Urban Population (r = +0.92)
- US Air Passengers Carried vs US Rural Population (r = -0.92)
- Atmospheric CO₂ (Mauna Loa) vs US Air Passengers Carried (r = +0.91)
Correlation does not imply causation. How the verdict is worked out.