ascend 发表于 2025-3-25 03:57:58
Abundance modelsth the problem of estimating certain population parameters. The constraints are themselves properties of the population that it may be worthwhile to study for their own sake, not from the point of view of estimation but rather in descriptive or evolutionary terms. The present chapter deals with variprediabetes 发表于 2025-3-25 07:34:54
Sample coveragedance of those classes that were not represented by any element in the sample. Take as an example Eldrige’s statistics of fully inflected words in American newspaper English (Eldridge, 1911; Zipf, 1932; Good, 1953). A sample of . = 43 989 (elements) words and . = 6001 different words (observed numbeSeminar 发表于 2025-3-25 12:24:05
Indices of diversity and equitabilityumber of classes is large. In particular, some real valued functions of p may be of interest, or in the case of a finite population, some function of r = (., .,… ,r.). It will be recalled that . is the number of classes with . representatives in the population. It was shown in Theorems 2.1 and 2.2 t粗鄙的人 发表于 2025-3-25 16:39:50
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