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Surveying natural populations : quantitative tools for assessing biodiversity / Lee-Ann C. Hayek & Martin A. Buzas

Introduction -- Density : mean and variance -- Normal and sampling distributions for fieldwork -- Confidence limits and intervals for density -- How many field samples? -- Spatial distribution : the ...
Investopedia

How Stratified Random Sampling Works, With Examples

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
CU Boulder News & Events

Graduate Certificate in Quantitative Methods for Behavioral Sciences

The purpose of the Graduate Certificate in Quantitative Methods is fourfold: (a) to strengthen interdepartmental links and communication among social and human science departments at CU Boulder, both ...
Investopedia

Systematic Sampling: What It Is, Pros and Cons

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...
insider.si.edu

Inventorying and Estimating Sub-Canopy Spider Diversity using Semi-Quantitative Sampling Methods in an Afromontane Forest

Sorensen, L. L., Coddington, Jonathan A., Griswold, C. E., Hormiga, G., and Place Bjorn, P. de. 2002. "Inventorying and Estimating Sub-Canopy Spider Diversity using ...