Variable sampling

Variable sampling, also known as variable-rate sampling or continuous sampling, is a statistical method used to evaluate characteristics that can be measured and quantified on a continuous scale. Unlike attribute sampling, which classifies data in a binary way (e.g., pass/fail, yes/no), variable sampling deals with a range of numerical values. Here are some key points about variable sampling:

Purpose: It is often used in auditing, quality control, and other fields to determine the mean, variance, or other statistical attributes of a population based on a sample.

Precision: Variable sampling provides more precise estimates compared to attribute sampling, as it deals with continuous data

Applications:

  • Quality Control: For example, measuring the length and diameter of screws in a manufacturing process to ensure they meet specified criteria.
  • Auditing: Verifying the valuation of accounts receivable by measuring the actual amounts rather than just checking for errors.
  • Environmental Monitoring: Measuring pollutant levels in a river at different times and places

Statistical Measures: It allows for the calculation of mean, standard deviation, and other statistical measures, providing a more detailed analysis

 

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