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US Egg Consumption per Person vs US Marriage Rate

US Egg Consumption per Person and US Marriage Rate correlate at r = +0.27 over 61 years (1961–2022), p = 0.038. With the time trend removed, r = -0.62. 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 -0.62. 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
0.038
Years compared (n)
61 (1961–2022)
95% confidence interval
0.02 to 0.49
Correlation with the time trend removed
-0.62

Sources

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