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In general, a sample is a part of the total, such as one individual or a set of individuals from a population (of people or things), a small piece or amount of something larger, a number of function values of a function, or part of a song. Sampling, then, is the selection of a subset from a larger whole.

It has distinct meanings in:

probability theory and statistics: sampling (statistics), statistical sample, sample space
digital signal processing: a sample refers to the value attained by an analog signal acquired at regular intervals when digitising it.
music: a sample refers to any sound played back from a digital sampler device based on the principle referred to above.
soil and groundwater sampling and testing for environmental remediation.

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Topics: Sample, Sampling Frequency, Sampling (music), Sampling...

Sampling frequencySignal Processing and Control Theory In digital signal processing and in control theory, sampling frequency is the rate at which a continuous-time ( analog) signal is sampled into a discrete-time ( digital) signal consisting of digital samples. Sampling f	Sampling (music)In music, sampling is the act of taking a portion of one sound recording and reusing it as an instrument or element of a new recording. This is typically done with a sampler, which can be a piece of hardware or a computer program on a digital computer.	Sampling (statistics)Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statistical inference. In particular, results from probabi
Sampling distributionIn statistics, a sampling distribution is the probability distribution, under repeated sampling of the population, of a given statistic (a numerical quantity calculated from the data values in a sample). The formula for the sampling distribution depends o

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