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US Median Age vs US Cereal Yield
US Median Age and US Cereal Yield correlate at r = +0.95 over 63 years (1961–2023), p < 0.0001. With the time trend removed, r = -0.16. 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 -0.16 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.95
- p-value
- < 0.0001
- Years compared (n)
- 63 (1961–2023)
- 95% confidence interval
- 0.91 to 0.97
- Correlation with the time trend removed
- -0.16
Sources
- US Median Age (years): Our World in Data. US Median Age (Our World in Data: Median age).
- US Cereal Yield (kg per hectare): World Bank. US Cereal Yield (World Bank indicator AG.YLD.CREL.KG).
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 Cereal Yield (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- Atmospheric CO₂ (Mauna Loa) vs US Median Age (r = +0.97)
- US Median Age vs US Internet Users (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.