CorrelateAI › Pairs
US Air Passengers Carried vs US Fertility Rate
US Air Passengers Carried and US Fertility Rate correlate at r = -0.27 over 54 years (1970–2023), p = 0.048. With the time trend removed, r = +0.33. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is -0.27, but once each series' time trend is removed it becomes 0.33. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- -0.27
- p-value
- 0.048
- Years compared (n)
- 54 (1970–2023)
- 95% confidence interval
- -0.50 to -0.00
- Correlation with the time trend removed
- +0.33
Sources
- US Air Passengers Carried (passengers): Our World in Data. US Air Passengers Carried (Our World in Data: Air transport, passengers carried).
- US Fertility Rate (children per woman): Our World in Data. US Fertility Rate (Our World in Data: Total fertility rate).
Related pairs
- US Air Passengers Carried vs US Life Expectancy (r = +0.94)
- US Air Passengers Carried vs US Median Age (r = +0.94)
- US Air Passengers Carried vs US Population (r = +0.94)
- US Air Passengers Carried vs US Urban Population (r = +0.92)
- US Air Passengers Carried vs US Rural Population (r = -0.92)
- Atmospheric CO₂ (Mauna Loa) vs US Air Passengers Carried (r = +0.91)
Correlation does not imply causation. How the verdict is worked out.