(statistics) The error caused by observing a sample instead of the whole population.

plural of sampling straw

A technique used to sample benthic invertebrates in a stream, etc., where a net is held underwater and the surrounding substrate disturbed by kicking.

plural of random sample

plural of sample function

plural of blood sample

(metalworking) A sample taken for assay from a molten metallic mass by pouring a portion into water to granulate it.

plural of shot sample

plural of core sample

A cylindrical section of a naturally occurring substance, typically obtained by drilling into the substance, for example sediment or rock, with a core drill.