estimated unknown number
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estimated unknown number
The estimated number of cases (e.g., crimes, illnesses) that are not officially recorded or reported and therefore do not appear in any statistics.
Experten gehen davon aus, dass die Dunkelziffer bei Cyberkriminalität extrem hoch ist.
Experts assume that the estimated unknown number of cybercrime cases is extremely high.
The word is made up of 'dunkel' (dark) and 'Ziffer' (digit/number). Figuratively, it describes a number that lies 'im Dunkeln' (in the dark), meaning it is not visible or known.
Die offiziellen Zahlen sind niedrig, aber es gibt eine hohe Dunkelziffer.
The official numbers are low, but there is a high estimated unknown number.
Common adjectives are 'hoch' (high) or 'niedrig' (low). Typical verbs are 'vermuten' (to suspect/assume), 'schätzen' (to estimate), or the phrase 'von einer hohen Dunkelziffer ausgehen' (to assume there is a high number of unreported cases).
Die Polizei geht bei Einbrüchen von einer hohen Dunkelziffer aus.
The police assume there is a high estimated unknown number of burglaries.
To name the area in which there are unreported cases, the preposition 'bei' followed by the dative is almost always used.
Die Dunkelziffer bei häuslicher Gewalt ist besonders hoch.
The estimated unknown number in cases of domestic violence is particularly high.
case number
'die Dunkelziffer' and 'die Fallzahl' both talk about the number of cases, for example illnesses, accidents, or crimes. 'Fallzahl' means the officially registered cases in a certain period of time. 'Dunkelziffer', on the other hand, means the estimated cases that were not reported or not recorded. The words can be confused because both appear in reports and statistics. The important point is: the 'Fallzahl' is visible in the statistics. The 'Dunkelziffer' is additionally estimated because not everything is known.
Bei kleinen Betrugsfällen ist die Dunkelziffer wahrscheinlich hoch, weil viele Menschen nichts melden.
For small cases of fraud, the estimated unknown number is probably high because many people do not report anything.
Im Winter steigt die Fallzahl der Grippe in vielen Städten deutlich an.
In winter, the number of flu cases rises significantly in many cities.