Читать книгу Global Approaches to Environmental Management on Military Training Ranges - Tracey Temple - Страница 46

Sampling is the process of obtaining a portion of a total population that represents that population as a whole. That portion is called the sample. Samples must be representative of the area as a whole from which they are collected or they will be meaningless, representing only themselves. How is a representative sample collected? This section will guide the reader through the process required to ensure that the samples collected will fulfill the objectives that the sample is required to meet. Subsampling, the process of obtaining a portion of a collected sample that represents the sample as a whole and thus the total population, will be discussed in section 2.7.