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Sydney Average Temperature vs US Imports

Sydney Average Temperature and US Imports correlate at r = +0.54 over 55 years (1970–2024), p < 0.0001. With the time trend removed, r = +0.10. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.54 to 0.10 once the trend is removed.

Pearson r
+0.54
p-value
< 0.0001
Years compared (n)
55 (1970–2024)
95% confidence interval
0.33 to 0.71
Correlation with the time trend removed
+0.10

Sources

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