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US Dollar to British Pound vs US Population
US Dollar to British Pound and US Population correlate at r = +0.71 over 27 years (1999–2025), p < 0.0001. With the time trend removed, r = -0.38. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.71, but once each series' time trend is removed it becomes -0.38. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.71
- p-value
- < 0.0001
- Years compared (n)
- 27 (1999–2025)
- 95% confidence interval
- 0.45 to 0.86
- Correlation with the time trend removed
- -0.38
Sources
- US Dollar to British Pound (GBP per USD): Frankfurter (ECB). Annual mean US Dollar to British Pound exchange rate (European Central Bank reference rates).
- US Population (people): World Bank. US Population (World Bank indicator SP.POP.TOTL).
Related pairs
- US Adult Obesity vs US Population (r = +1.00)
- Atmospheric CO₂ (Mauna Loa) vs US Population (r = +0.99)
- US Resident Patent Applications vs US Population (r = +0.98)
- US Median Age vs US Population (r = +0.98)
- US Cereal Yield vs US Population (r = +0.97)
- US GDP per Capita vs US Population (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.