Sentence examples for secondary sampling from inspiring English sources

For example, self-weighted two-stage sampling is often used to select primary sampling units with probabilities that are proportional to the number of secondary sampling units within the primary units; a simple random sample is selected within each primary unit.

Nyquist folding receiver (NYFR) [16] is a secondary sampling scheme as shown in Fig. 1.

In turn each segment is constituted by M satellite pixels referred to as secondary sampling units (SSUs).

In three additional scenarios of predefined sample composition, the numbers of primary and secondary sampling units were: 30 × 30, 50 × 20 and 65 × 15.

Finally, for each city and sample composition, we selected primary sampling units (census tracts) with probability proportional to its size and with replacement, and secondary sampling units (households) by simple random sampling.

Visiting points, or households were used as secondary sampling units.

McQuaid stressed that he would not pass judgment on Landis until a laboratory has tested the secondary sample.

At the start in Pau on Wednesday, the Tour director, Christian Prudhomme, said that under U.C.I. rules, Schleck would have been allowed to race until the result of the secondary sample was revealed.

The Chinese sample are undergraduates drawn from a single university, while the more numerous secondary samples are drawn from a number of schools in four nations.

Paired observations were extracted from the forest cover map and the reference data for a random selection of 50 secondary sample units (SSUs) in the form of pixels within each PSU.

The performance of all the original, re-estimated and new proposed models are assessed by predictive accuracy, significance of parameters, long-range accuracy, secondary sample and Receiver Operating Characteristic (ROC) tests.