英语词汇“frequency”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

nounWord forms: plural -cies

the state of being frequent; frequent occurrence

the number of times that an event occurs within a given period; rate of recurrence

3. physics

the number of times that a periodic function or vibration repeats itself in a specified time, often 1 second. It is usually measured in hertz

Symbol: ν, f

4. statistics

the number of individuals in a class (absolute frequency)

the ratio of this number to the total number of individuals under survey (relative frequency)

5. ecology

the number of individuals of a species within a given area

the percentage of quadrats that contains individuals of a species

Also called (for senses 1, 2): frequence

单词	frequency
释义	Word Frequency frequency (ˈfriːkwənsɪ) nounWord forms: plural -cies 1. the state of being frequent; frequent occurrence 2. the number of times that an event occurs within a given period; rate of recurrence 3. physics the number of times that a periodic function or vibration repeats itself in a specified time, often 1 second. It is usually measured in hertz Symbol: ν, f 4. statistics a. the number of individuals in a class (absolute frequency) b. the ratio of this number to the total number of individuals under survey (relative frequency) 5. ecology a. the number of individuals of a species within a given area b. the percentage of quadrats that contains individuals of a species Also called (for senses 1, 2): frequence Word origin C16: from Latin frequentia a large gathering, from frequēns numerous, crowded
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