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The act of obtaining a sample is called "sampling" [3] and can be performed manually by a person or by automatic process. Samples of material can be taken or provided for testing, analysis, investigation, quality control, demonstration, or trial use. Sometimes, sampling may be performed continuously. [4] [5]
Sampling (music), the reuse of a sound recording in another recording Sampler (musical instrument), an electronic musical instrument used to record and play back samples; Sampling (statistics), selection of observations to acquire some knowledge of a statistical population; Sampling (case studies), selection of cases for single or multiple case ...
Signal sampling representation. The continuous signal S(t) is represented with a green colored line while the discrete samples are indicated by the blue vertical lines. In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave to a sequence of "samples".
A product sample is a sample of a consumer product that is given to the consumer free of cost so that they may try a product before committing to a purchase. When it comes to marketing non-durable commodities, such as food items, sampling is crucial.
A visual representation of the sampling process. In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population. The subset is meant to reflect the whole ...
An example of cluster sampling is area sampling or geographical cluster sampling.Each cluster is a geographical area in an area sampling frame.Because a geographically dispersed population can be expensive to survey, greater economy than simple random sampling can be achieved by grouping several respondents within a local area into a cluster.
The results of the convenience sampling cannot be generalized to the target population because of the potential bias of the sampling technique due to the under-representation of subgroups in the sample in comparison to the population of interest. The bias of the sample cannot be measured. Therefore, inferences based on convenience sampling ...
Sampling is one of the foundations of hip hop, which emerged in the 1980s. [34] Hip hop sampling has been likened to the origins of blues and rock, which were created by repurposing existing music. [24] The Guardian journalist David McNamee wrote that "two record decks and your dad's old funk collection was once the working-class black answer ...