to correlate
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to correlate with
To be in a mutual relationship with each other or to show a statistical connection. When two things correlate, it means that a change in one often goes along with a change in the other, without there necessarily being a cause-and-effect relationship.
Die Studie zeigt, dass die tägliche Lernzeit stark mit den Prüfungsergebnissen korreliert.
The study shows that daily study time correlates strongly with exam results.
'Korrelieren' (to correlate) is almost always used with the preposition 'mit' (with) and the dative. One thing correlates 'mit' another thing.
Der Konsum von Zucker korreliert mit einem erhöhten Risiko für bestimmte Krankheiten.
The consumption of sugar correlates with an increased risk of certain diseases.
There are two typical sentence patterns. Either 'A korreliert mit B' (A correlates with B) or 'A und B korrelieren (miteinander)' (A and B correlate with each other).
Die Arbeitslosenquote und die Kriminalitätsrate korrelieren oft miteinander.
The unemployment rate and the crime rate often correlate with each other.
This verb belongs to technical and academic language. You often find it in studies, statistics, and formal discussions, but rarely in everyday colloquial speech.
In seiner Analyse zeigte der Wissenschaftler, wie die beiden Faktoren korrelieren.
In his analysis, the scientist showed how the two factors correlate.
It is often described how strong the connection is. Typical adverbs are 'stark' (strongly), 'schwach' (weakly), 'positiv' (positively, when both increase), or 'negativ' (negatively, when one increases and the other decreases).
Es wurde nachgewiesen, dass die beiden Werte negativ korrelieren.
It was proven that the two values correlate negatively.
to cause
'verursachen' and 'korrelieren mit' both describe a relationship between two things, but not the same kind of relationship. 'verursachen' means: one thing is the reason that something happens. 'Korrelieren mit' only means: two things often occur together or change in similar ways. That does not automatically mean that one triggers the other. This confusion is important, especially with numbers, studies, or observations. A simple memory aid is: correlation shows a connection; cause shows the reason.
In der Studie korreliert wenig Schlaf mit schlechteren Ergebnissen im Test.
In the study, little sleep correlates with worse test results.
Ein kaputtes Kabel verursacht den Stromausfall im Wohnzimmer.
A broken cable is causing the power outage in the living room.