Stratified random sampling is a method of sampling that divides a population into smaller groups that form the basis of test ...

A simple random sample is a subset of a statistical population where each member of the population is equally likely to be ...

UK – At a lecture hosted by the International Journal of Market Research (IJMR), researchers from Kantar, NatCen and Ipsos Mori discussed the future of random probability sampling. Random probability ...

Referring to recent confusion over whether UK crime statistics are going up or down, he said: “I’ve got a lot of time for varied and creative approaches to data collection, but when you’re looking at ...

Mark Blumenthal and Natalie Jackson of Huffpost Pollster write: If you read polls in the news, you’re probably familiar with the term “margin of error.” What ...

A new sampling scheme, with probability of inclusion proportional to size, is proposed for a sample of given size n. It satisfies many requirements of a good sampling scheme under conditions usually ...

The COVID-19 pandemic has infected over 38 million people around the world and is showing no signs of going away any time soon. Researchers worldwide are frantically working on developing an effective ...