Area Sample

(redirected from Area Samples)

Area Sample

In statistics, all the possible values a random variable can take under a given set of circumstances in a geographic area, as well as the probability that it will take each value. That is, an area sample divides a large geographic area into subunits and calculates the probability that the variable will occur in each unit. An area sample is a form of probability distribution applied to geography. It is also called an area selection.
References in periodicals archive ?
This spectrometer will also make possible high speed scanning of large area samples that are of industrial relevance.
Therefore, neither the applicator or area samples exceeded The American Conference of Governmental Industrial Hygienists' ("ACGIH") Threshold Limit Value-Time Weighted Average ("TLV-TWA") of 5 ppb.
In fact, after looking at other Northern Ontario communities that have similar metal statistics, Wren says the Sudbury area samples actually featured a lower level of arsenic than places such as Wawa.
2] area samples there is no significant difference between the two area sample values (F=1.
During the entire process, passive dosimetry for mercury vapor was employed to collect personal and area samples.
Comparison of PbTx concentration obtained from area samples taken with high-volume samplers showed that the personal samples indicated a lower exposure concentration (on the average about 50%) from those obtained from the area sample.
The small geographic area samples were selected from the States of Arizona, Georgia, Pennsylvania, Wisconsin, and Washington; States where the four PGPs were also located.
Area samples were collected near each process and were used by Kleissler as additional engineering data.
This approach uses data from air mass balancers, real-time air contaminant profiles, area samples and tracer gas simulations of contaminant dispersion to form a composite picture of ventilation conditions.
These new market baskets--new geographic area samples, new item structure, and new expenditure weights--will take effect with the index for January 1998.
Personal (breathing zone) air samples, as well as area samples, were collected and analyzed using transmission electron microscopy.
At the base camp, area samples collected by Placer have shown assays of 2.