名詞 frequency:

1. the number of occurrences within a given time period
   同義詞：frequence, oftenness
2. the ratio of the number of observations in a statistical category to the total number of observations
   同義詞：relative frequency
3. the number of observations in a given statistical category
   同義詞：absolute frequency

1. We can often correlate age with frequency of illness.
   年齡的大小往往與發(fā)病率有關(guān)。
2. Any one of the numbers or values in a series dividing the distribution of the individuals in the series into ten groups of equal frequency.
   十分位數(shù)指把一系列的數(shù)字或價(jià)格按相等的出現(xiàn)頻率分成十組后的其中任何一個(gè)數(shù)字或價(jià)格
3. He varied the transmission frequency.
   他變換了無線電傳送的頻率。
4. Accidents on that highway are happening with increasing frequency.
   那條高速公路上車禍發(fā)生得越來越頻繁。

fre.quen.cy

n.（名詞）
【復(fù)數(shù)】 fre.quen.cies 縮寫 freq.
The property or condition of occurring at frequent intervals.
頻繁性：有規(guī)律間歇出現(xiàn)的特性或情況
Mathematics Physics The number of times a specified phenomenon occurs within a specified interval, as:
【數(shù)學(xué)】 【物理學(xué)】 頻率，次數(shù)：某特定現(xiàn)象在特定間歇時(shí)間內(nèi)發(fā)生的次數(shù)，如
The number of repetitions of a complete sequence of values of a periodic function per unit variation of an independent variable.
頻率：當(dāng)自變量變化一個(gè)單位時(shí)，周期函數(shù)取同一完整數(shù)序的重復(fù)次數(shù)
The number of complete cycles of a periodic process occurring per unit time.
次數(shù)：單位時(shí)間內(nèi)周期過程中發(fā)生的次數(shù)
The number of repetitions per unit time of a complete waveform, as of an electric current.
頻率：單位時(shí)間內(nèi)某種完整波動的重復(fù)次數(shù)，例如電流
Statistics
【統(tǒng)計(jì)學(xué)】
The number of measurements in an interval of a frequency distribution.
頻率分布：一次頻率分布的區(qū)間內(nèi)計(jì)算的數(shù)量
The ratio of the number of times an event occurs in a series of trials of a chance experiment to the number of trials of the experiment performed.
頻數(shù)：一系列實(shí)驗(yàn)中偶然現(xiàn)象次數(shù)與所做的一系列實(shí)驗(yàn)的次數(shù)的比率

來源：
Latin frequentia [multitude]
拉丁語 frequentia [眾多]
from frequôns frequent- [crowded, numerous, frequent]
源自 frequôns frequent- [塞滿的，為數(shù)眾多的，頻繁的]