A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of ...

It’s a small example of the seismic shift needed. It’s not perfect, but if we’re able to bring a bit more humanity into the here and now, it’s a start.

Technically, a representative sample requires only whatever percentage of the statistical population is necessary to replicate as closely as possible the quality or characteristic being studied or ...

The weighting procedure also accounts for the fact that respondents with both landline and cell phones have a greater probability of being included in the combined sample and adjusts for household ...

HOLLIDAYSBURG — High levels of lead recently found in samples of drinking water in some homes and buildings in Hollidaysburg Borough were the result of a sampling error, according to Rick Pope ...

“The only conclusion was that this was a highly localized event specific to that sample site, and it was probably due to a sampling error,” said Nigel Grace of Brown and Caldwell.

The analysis in this report is based on telephone interviews conducted Sept. 2-9, 2014, among a national sample of 2,002 adults, 18 years of age or older, living in all 50 U.S. states and the District ...