frequency
Loading your saved state.
frequency
The measure of how often something occurs within a certain period of time or in a certain group. It describes whether an event or characteristic occurs often, rarely, or regularly.
Die Häufigkeit von Erkältungen nimmt im Winter deutlich zu.
The frequency of colds increases significantly in winter.
'Häufigkeit' (frequency) is derived from the adjective 'häufig' (frequent/often). The ending '-keit' is often used in German to form abstract nouns from adjectives.
Die Häufigkeit seiner Besuche überraschte uns.
The frequency of his visits surprised us.
To express what the frequency is being measured for, it is often followed by a noun in the genitive or a 'von' construction with the dative.
Die Studie untersucht die Häufigkeit der Wortnennungen.
The study examines the frequency of word mentions.
Common formulations are 'die Häufigkeit nimmt zu/ab' (the frequency increases/decreases) or 'in absteigender/zunehmender Häufigkeit' (in decreasing/increasing frequency).
Mit steigendem Alter nimmt die Häufigkeit von Arztbesuchen zu.
With increasing age, the frequency of doctor visits increases.
The statistical meaning can often be recognized by signal words such as 'absolut' (absolute), 'relativ' (relative), 'Statistik' (statistics), 'Daten' (data), or 'Analyse' (analysis).
Die relative Häufigkeit dieses Ergebnisses liegt bei 15 Prozent.
The relative frequency of this result is 15 percent.
number
'die Anzahl' and 'die Häufigkeit' are both connected to numbers. 'Anzahl' means how many things or people there are. 'Häufigkeit' means how often something occurs or happens. In statistics, 'Häufigkeit' can also be the exact number of occurrences, which makes it especially easy to confuse the two. In everyday language, this rule helps: use 'Anzahl' for a counted quantity, and 'Häufigkeit' for repetitions or occurrences. The number of guests can be 30; the frequency of visits can be twice a week.
Die Ärztin fragt nach der Häufigkeit der Kopfschmerzen.
The doctor asks about the frequency of the headaches.
Ich notiere die Anzahl der Bücher, die wir für den Kurs brauchen.
I write down the number of books we need for the course.