Correct sampling

From HandWiki

During sampling of granular materials (whether airborne, suspended in liquid, aerosol, or aggregated), correct sampling is defined in Gy's sampling theory as a sampling scenario in which all particles in a population have the same probability of ending up in the sample.[1]

The concentration of the property of interest in a sample can be a biased estimate for the concentration of the property of interest in the population from which the sample is drawn. Although generally non-zero, for correct sampling this bias is thought to be negligible.[1]

See also

References

  1. 1.0 1.1 Gy, Pierre (1979). Sampling of particulate materials : theory and practice. Developments in geomathematics. Amsterdam: Elsevier Scientific Pub. Co.. ISBN 0-444-41826-1. OCLC 5101118. https://books.google.com/books?id=dYIjAQAAIAAJ.