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US R&D Expenditure vs US Rural Population

US R&D Expenditure and US Rural Population correlate at r = -0.31 over 28 years (1996–2023), p = 0.109. With the time trend removed, r = +0.72. Not statistically significant.

Verdict: Not statistically significant. With n = 28, this correlation isn't statistically significant (p = 0.109). It could easily be chance.

Pearson r
-0.31
p-value
0.109
Years compared (n)
28 (1996–2023)
95% confidence interval
-0.61 to 0.07
Correlation with the time trend removed
+0.72

Sources

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Correlation does not imply causation. How the verdict is worked out.