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US Cereal Yield vs US Population Aged 65+
US Cereal Yield and US Population Aged 65+ correlate at r = +0.92 over 64 years (1961–2024), p < 0.0001. With the time trend removed, r = +0.11. 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 0.11 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.92
- p-value
- < 0.0001
- Years compared (n)
- 64 (1961–2024)
- 95% confidence interval
- 0.86 to 0.95
- Correlation with the time trend removed
- +0.11
Sources
- US Cereal Yield (kg per hectare): World Bank. US Cereal Yield (World Bank indicator AG.YLD.CREL.KG).
- US Population Aged 65+ (% of total): World Bank. US Population Aged 65+ (World Bank indicator SP.POP.65UP.TO.ZS).
Related pairs
- US Wind Power Generation vs US Population Aged 65+ (r = +0.99)
- Atmospheric CO₂ (Mauna Loa) vs US Cereal Yield (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- US Cereal Yield vs US GDP per Capita (r = +0.97)
- US Cereal Yield vs US GDP (current US$) (r = +0.96)
- US Renewable Energy Share vs US Population Aged 65+ (r = +0.96)
Correlation does not imply causation. How the verdict is worked out.