arthroscopy
发表于 2025-3-25 06:14:03
Single- and More-Stage Cluster Sampling,e encountered e.g. in mountainous areas or in tropical forests, this method of sample selection may turn out very costly because of the long travelling distances and the necessity of frequently establishing new camps. In such instances another sampling technique, known as . or shortly ., often is preferred. The design then is as follows.
Antagonist
发表于 2025-3-25 08:38:38
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linear
发表于 2025-3-25 14:08:12
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Gorilla
发表于 2025-3-25 17:02:18
List Sampling,st of all sampling units occurring in the population, together with a measure of their size. For instance, if we wish to draw a list sample from a plantation consisting of k different stands (numbered i = 1,...,k), we need a list containing the number (i) and e.g. the area (x.) of each stand. See Table 1, colums 1 and 2.
冒烟
发表于 2025-3-25 22:56:43
the generally la~ge extent of forest areas, data are usually collected by sampling, i.e. by making observations on only part of the area of interest. As there are many different sampling methods (e.g. Appendix 1), a choice must first be made as to which method suits the given field and financial cir
inflame
发表于 2025-3-26 00:31:56
relations between the two countries in the light of a chang.The contributions in this proceedings volume offer a new perspective on the mathematical ties between France and Italy, and reveal how mathematical developments in these two countries affected one another. The focus is above all on the Pen
召集
发表于 2025-3-26 08:00:24
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火花
发表于 2025-3-26 10:37:44
Pieter G. de Vrieso different ways. On the one hand, they act as controlling and repressive agencies checking irregularities in the quantity and quality of the species they feed on. On the other hand, they perform a moral function, by teaching that partial evils contribute to universal good and by providing a vivid i
无能力
发表于 2025-3-26 16:21:41
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他姓手中拿着
发表于 2025-3-26 19:31:57
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