variable sampling

Variable sampling is a statistical method used to assess a large group by examining a smaller, representative sample of that group. Instead of analyzing every single item or data point, which can be time-consuming and costly, researchers select a portion of items to inspect. This sample should reflect the diversity of the whole group, allowing for accurate generalizations about its characteristics. Variable sampling helps in making informed decisions and predictions by providing insights while saving resources, making it a valuable tool in quality control, market research, and various other fields.