1. Critics have argued that the sampling theory is incongruent with certain empirical findings. 2. Systematic sampling theory can be used to create a probability proportionate to size sample. 3. Throughout his career, his main interests have been survey methods, sampling theory and official statistics. 4. His innovative work inspired a great deal of progress in sampling theory and practice in many scientific disciplines. 5. The " folding-in " technique used in classrooms today is derived from the stimulus sampling theory . 6. Gy's sampling theory quantitavely defines the "'heterogeneity "'of a particle as: 7. On graduation, Gy worked as a chemical engineer for the Compagnie Mini�re du Congo Fran�ais, sampling theory . 8. At you can scroll down to " Rudimentary statistics " and see a nice explanation of statistical sampling theory . 9. These include representations for signals ( Fourier, wavelets, frames ), sampling theory , and sparse representations. 10. Gy's sampling theory quantitatively defines the "'heterogeneity "'of a particle as: