A representative set of products ordinarily selected at random from a larger set called a lot and used for the inspection or evaluation.
In epidemiology, a group of subjects selected for study that represents a larger group or population.
A small quantity of something used for testing.
A part of a population, intended to be in some way representative of the population.
A piece or portion of a whole that demonstrates the characteristics or quality of the whole, such as a specimen of blood.