In a recently published news story, we learn about a young doctor, Jake Deutsch, and his personal experience with coronavirus disease 2019. Deutsch tested positive for Covid-19 and checked himself ...

Learning to read a survey means understanding margins of error, sampling, weighting, and media framing, with an essential checklist and glossary.

Gudbjartsson and colleagues (June 11 issue) 1 reveal important insights into the transmission of SARS-CoV-2. An aspect of their study that merits further exploration is the positive test results in ...

Consider these two questions: What percentage of Americans are, or have been, infected with the coronavirus? And, what is the probability of dying from the virus if you catch it? One of the most ...

When auditing a company, auditors use a combination of professional judgment and statistical sampling methods to estimate account balances. Statistical sampling is an efficient way to design samples, ...

Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

Understanding margins of error, sample sizes, and weighted estimates is essential to reading political polls clearly and ...

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 ...