noun
frequency; frequency count
Technical term used in statistics, data analysis, and linguistics to refer to the number of occurrences or a numerical measure of how often something appears.
この単語の頻度数を調べてください。
Please check the frequency count of this word.
頻度数が高いほど、その項目はよく出現している。
The higher the frequency, the more often that item appears.
度数 means 'frequency' or 'number of times' and is often used in statistics (e.g., 度数分布). 頻度数 combines this with 頻度 to emphasize occurrence frequency.
Compound of 頻度 (frequency) and 数 (number). The exact historical derivation is uncertain, but it is a straightforward technical coinage.