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US GDP per Capita vs US Mobile Subscriptions

US GDP per Capita and US Mobile Subscriptions correlate at r = +0.94 over 50 years (1960–2024), p < 0.0001. With the time trend removed, r = +0.51. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.94 to 0.51 once the trend is removed.

Pearson r
+0.94
p-value
< 0.0001
Years compared (n)
50 (1960–2024)
95% confidence interval
0.90 to 0.97
Correlation with the time trend removed
+0.51

Sources

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