Successful investing requires the ability to distinguish long-term trends from the short-term noise that moves stock prices on a minute-to-minute basis. One way to tune out the random oscillations and ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Many of Pew Research Center’s survey analyses show relationships between two ...

Understand and code the R² metric (goodness of fit) in C++. A must-know concept for evaluating regression models.

The Annals of Statistics, Vol. 10, No. 1 (Mar., 1982), pp. 154-166 (13 pages) Strong consistency and asymptotic normality of least squares estimates in stochastic regression models are established ...

The estimates for the House of Representatives come from a model, not just from a survey result. The difference between the two is that while a survey attempts to measure the whole of something by ...

In this study the Soviet Union serves as a prototype to demonstrate that basic demographic measures can be reconstructed from scanty data. Analytical tools designed for estimating such measures are ...