Microbial community samples can be efficiently surveyed in high throughput by sequencing markers such as the 16S ribosomal RNA gene. Often, a collection of samples is then selected for subsequent ...

Purposive sampling has a long developmental history and there are as many views that it is simple and straightforward as there are about its complexity. The reason for purposive sampling is the better ...

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Description: Every member of the population has an equal chance of being selected. Example: If a company wants to survey its employees, they can assign a number to each employee and use a random ...