The analysis of the experiences and attitudes of the LGBT population in this report is based on a survey conducted April 11-29, 2013, among a sample of 1,197 self-identified LGBT adults, 18 years of ...

Survey sampling and estimation methods form the cornerstone of modern statistical inference, underpinning research across the social, medical, and natural sciences. At their heart, these methods ...

Melissa Horton is a financial literacy professional. She has 10+ years of experience in the financial services and planning industry. NicoElNino / Getty Images Simple random sampling gives each member ...

Sampling is a technique in which samples are drawn at random (without any favor or bias). For this, suitable measures or procedures may be laid down and adopted according to the nature and ...

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 ...

For each of the 15 sites, bulk soil samples were collected from the top 10 mm of soil near the particle-sampling sites. The samples were air-dried, and subsamples were taken for soil analysis. Later, ...

In performing air sampling in the field, the first step is to assemble a sampling train consisting of a calibrated personal sampling pump connected by a piece of plastic tubing to the collection media ...

Several states with extensive water use databases rely upon the census approach. That is, data are collected for all water users withdrawing amounts greater than a specified threshold that varies from ...