sampling rate
In digital signal processing, this term refers to the technical precision of a conversion process. A higher rate generally implies higher fidelity and a more accurate reproduction of the original analog wave, whereas a lower rate can lead to aliasing or loss of detail. It is a technical specification typically measured in Hertz (Hz) or kilohertz (kHz).
In a statistical context, the term shifts from a measure of frequency to a measure of proportion. It describes the density of the selection process relative to the total population. While the digital sense is an absolute measurement of time, the statistical sense is often a ratio or a percentage used to ensure the validity and representativeness of a data set.
Meanings
The frequency at which an analog signal is converted into discrete digital samples per second in digital audio or signal processing.
The audio quality depends on the sampling rate, with 44.1 kHz being the standard for CDs.
In statistics, the proportion or frequency with which a population is selected for a study or survey to represent the whole.
The researchers adjusted the sampling rate to ensure a more diverse demographic was captured in the poll.