One of the mysteries of the English language finally explained.
1with object Statistics. To sample at a comparatively high rate or frequency in relation to other categories; to over-represent in a sample. Also without object: to take a disproportionately high sample of a particular category.
2with object Science and Engineering. To sample at a high frequency relative to the frequency of the data, especially at a frequency that is much greater than the Nyquist frequency. Also (Electronics): to subject (a digital signal) to oversampling during processing.
1940s; earliest use found in Public Opinion Quarterly. From over- + sample.
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