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US Internet Users vs US Military Expenditure

US Internet Users and US Military Expenditure correlate at r = -0.39 over 35 years (1990–2024), p = 0.022. With the time trend removed, r = -0.01. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.022) and the association survives trend removal (detrended r = -0.01). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.39
p-value
0.022
Years compared (n)
35 (1990–2024)
95% confidence interval
-0.64 to -0.06
Correlation with the time trend removed
-0.01

Sources

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