CorrelateAI › Pairs
US Forest Area vs US Secondary School Enrollment
US Forest Area and US Secondary School Enrollment correlate at r = +0.75 over 19 years (1990–2022), p = 2.3e-4. With the time trend removed, r = +0.07. 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 0.07 — the relationship is probably coincidental, not causal.
- Pearson r
- +0.75
- p-value
- 2.3e-4
- Years compared (n)
- 19 (1990–2022)
- 95% confidence interval
- 0.44 to 0.90
- Correlation with the time trend removed
- +0.07
Sources
- US Forest Area (% of land): World Bank. US Forest Area (World Bank indicator AG.LND.FRST.ZS).
- US Secondary School Enrollment (% gross): World Bank. US Secondary School Enrollment (World Bank indicator SE.SEC.ENRR).
Related pairs
- US Forest Area vs US Mobile Subscriptions (r = +0.98)
- US Forest Area vs US Resident Patent Applications (r = +0.97)
- US Adult Obesity vs US Forest Area (r = +0.97)
- US Forest Area vs US Population (r = +0.97)
- Atmospheric CO₂ (Mauna Loa) vs US Forest Area (r = +0.95)
- US Adolescent Birth Rate vs US Forest Area (r = -0.94)
Correlation does not imply causation. How the verdict is worked out.