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US Mobile Subscriptions vs US College Enrollment
US Mobile Subscriptions and US College Enrollment correlate at r = +0.80 over 32 years (1975–2022), p < 0.0001. With the time trend removed, r = -0.57. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.80, but once each series' time trend is removed it becomes -0.57. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.80
- p-value
- < 0.0001
- Years compared (n)
- 32 (1975–2022)
- 95% confidence interval
- 0.63 to 0.90
- Correlation with the time trend removed
- -0.57
Sources
- US Mobile Subscriptions (per 100 people): World Bank. US Mobile Subscriptions (World Bank indicator IT.CEL.SETS.P2).
- US College Enrollment (% gross): World Bank. US College Enrollment (World Bank indicator SE.TER.ENRR).
Related pairs
- US Mobile Subscriptions vs US Resident Patent Applications (r = +0.99)
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- US Internet Users vs US Mobile Subscriptions (r = +0.98)
- US Internet Usage vs US Mobile Subscriptions (r = +0.98)
- US Forest Area vs US Mobile Subscriptions (r = +0.98)
- US Nuclear Power Generation vs US College Enrollment (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.