Results 271 to 280 of about 7,510,284 (318)
Some of the next articles are maybe not open access.
Mean life in steady-state populations
Journal of Theoretical Biology, 1968Abstract The mean life of the elements comprising a steady state population is one of the three variables that uniquely specify that population, for mean life is equal to the ratio of population size to turnover rate and can always, in principle, be measured independently. Mean life measures the turnover frequency of elements during the steady state,
openaire +2 more sources
Maximal Deviation between Sample and Population Means in Finite Populations
Journal of the American Statistical Association, 1981Abstract Bounds are presented for the maximal deviation in finite populations between sample and population means in units of (a) the population mean deviation, (b) the population range, and (c) the population mean, extending previous results for the population standard deviation.
Barry C. Arnold, Richard A. Groeneveld
openaire +1 more source
Inference for a Population Mean II
1998You have studied in a preliminary fashion the application of confidence intervals and significance tests to measurement variables for which the population mean is the parameter of interest. You will apply these procedures to a variety of genuine applications in this topic.
Allan J. Rossman, Beth L. Chance
openaire +1 more source
THE MEANING OF ‘FITNESS‘ IN HUMAN POPULATIONS
Annals of Eugenics, 1947The articles published by the Annals of Eugenics (1925–1954) have been made available online as an historical archive intended for scholarly use. The work of eugenicists was often pervaded by prejudice against racial, ethnic and disabled groups. The online publication of this material for scholarly research purposes is not an endorsement of those views
openaire +3 more sources
What Does “Environmental Populism” Mean?
Populism, 2022Abstract The current article brings together and reviews the literature on “environmental populism”; that is, environmental issues that could be explored through a populist frame. The article reviews four different cases of environmental populism: (i) right-wing populism and climate denial, (ii) resource populism, (iii) eco-populism, and (iv) the ...
openaire +1 more source
Confidence and Population Means
1996The major difficulty in putting the properties of the special batch discussed in Chapter 8 to use is that we had to know a good deal about the population from which the sample was drawn in order to specify the characteristics of the special batch.
openaire +1 more source
What do epidemiologists mean by ‘population mixing’?
Pediatric Blood & Cancer, 2008AbstractThere is growing evidence that some chronic diseases are caused, or promoted, by infectious disease. ‘Population mixing’ has been used as a proxy for the range and dose of infectious agents circulating in a community. Given the speculation over the role of population mixing in many chronic diseases, we review the various methods used for ...
Graham R, Law +6 more
openaire +2 more sources
Sample vs. Population Mean-Variance Efficient Portfolios
Management Science, 1980It is common to use historical data in calculating the rates of return of risky options, and these data are used to calculate the mean and the variance, which are employed in the (MV) preference ranking. In this paper we study the effect of possible sampling error on the portfolio ranking.
Haim Levy, Yoram Kroll
openaire +1 more source
This chapter critically reviews the three main approaches to defining populism used today. The ideational approach argues that populism is a “thin-centered” political ideology, which views politics as an existential struggle between a “pure people” and a “corrupt elite.” An ...
openaire +1 more source
openaire +1 more source
Microarray Data Analysis: Comparing Two Population Means
2011Scientists employing microarray profiling technology to compare sample sets generate data for a large number of endpoints. Assuming the experimental design minimized sources of bias, and the analytical technology was reliable, precise, and accurate, how does the experimentalist determine which endpoints are meaningfully different between the groups ...
Jianghong, Deng +2 more
openaire +2 more sources