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Sampling
01
(statistics) the selection of a suitable sample for study
02
measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)
03
items selected at random from a population and used to test hypotheses about the population
04
the technique or process of extracting a small piece of music or sound to be used as part of a composition
例子
Cluster sampling involves dividing a population into clusters and randomly selecting entire clusters for analysis.
Surveys often rely on statistical sampling techniques to make accurate predictions about a population.
Before launching the nationwide survey, the researchers conducted a pilot study to test the questionnaire and sampling methods.
