noun
frequency of occurrence; incidence rate
Technical and formal term used in statistics, epidemiology, engineering, and similar fields to describe how often an event or phenomenon occurs.
この地域では地震の発生頻度が高い。
The frequency of earthquake occurrence is high in this region.
発生頻度をグラフにまとめた。
We compiled the incidence rates into a graph.
Compound of 発生 (occurrence) and 頻度 (frequency).