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Sunspot Number vs US Urban Population
Sunspot Number and US Urban Population correlate at r = -0.21 over 66 years (1960–2025), p = 0.098. With the time trend removed, r = -0.15. Not statistically significant.
Verdict: Not statistically significant. With n = 66, this correlation isn't statistically significant (p = 0.098). It could easily be chance.
- Pearson r
- -0.21
- p-value
- 0.098
- Years compared (n)
- 66 (1960–2025)
- 95% confidence interval
- -0.43 to 0.04
- Correlation with the time trend removed
- -0.15
Sources
- Sunspot Number (yearly mean): SILSO. Yearly mean total sunspot number (SILSO, Royal Observatory of Belgium).
- US Urban Population (% of total): World Bank. US Urban Population (World Bank indicator SP.URB.TOTL.IN.ZS).
Related pairs
- US Rural Population vs US Urban Population (r = -1.00)
- US Population vs US Urban Population (r = +0.97)
- US Adult Obesity vs US Urban Population (r = +0.95)
- US Median Age vs US Urban Population (r = +0.95)
- US Electricity Generation vs US Urban Population (r = +0.95)
- US Life Expectancy vs US Urban Population (r = +0.95)
Correlation does not imply causation. How the verdict is worked out.