Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Dr. JeFreda R. Brown is a financial consultant, ...

Perhaps you saw the headlines this weekend: “Sexting: Just About Everyone’s Doing It,” from Discovery News, or “Online survey finds 8 in 10 adults have engaged in sexting,” from CNN. Wow – that’s ...

Sampling is the process of collecting some data when collecting it all or analyzing it all is unreasonable. Before addressing why sampling still matters when massive amounts of data are available and ...

The Journal of Geo-information Science recently published an online article on research led by researcher Lianfa Li and researcher Xiaomei Yang (Institute of Geographic Sciences and Natural Resources ...

Bias is an overloaded word. It has multiple meanings, from mathematics to sewing to machine learning, and as a result it’s easily misinterpreted. When people say an AI model is biased, they usually ...