Selection bias — is a statistical bias in which there is an error in choosing the individuals or groups to take part in a scientific study.[1] It is sometimes referred to as the selection effect. The term selection bias most often refers to the distortion of a… … Wikipedia
Statistical survey — Statistical surveys are used to collect quantitative information about items in a population. Surveys of human populations and institutions are common in political polling and government, health, social science and marketing research. A survey… … Wikipedia
statistical sample — selection of items that represent the general opinion of a population … English contemporary dictionary
Statistical inference — In statistics, statistical inference is the process of drawing conclusions from data that are subject to random variation, for example, observational errors or sampling variation.[1] More substantially, the terms statistical inference,… … Wikipedia
Statistical graphics — thumb|240px|John Snow s Cholera map in dot style, 1854.Statistical graphics, also known as graphical techniques, are information graphics in the field of statistics used to visualize quantitative data. Overview Statistics and data analysis… … Wikipedia
Statistical static timing analysis — Conventional static timing analysis (STA) has been a stock analysis algorithm for the design of digital circuits over the last 30 years. However, in recent years the increased variation in semiconductor devices and interconnect has introduced a… … Wikipedia
Statistical hypothesis testing — This article is about frequentist hypothesis testing which is taught in introductory statistics. For Bayesian hypothesis testing, see Bayesian inference. A statistical hypothesis test is a method of making decisions using data, whether from a… … Wikipedia
statistical sampling — The selection of a *sample of data from a *population using objective, statistical methodologies. *Probability theory and *random selection techniques are commonly used in statistical sampling, and properly designed statistical samples identify… … Auditor's dictionary
Statistical significance — In statistics, a result is called statistically significant if it is unlikely to have occurred by chance. A statistically significant difference simply means there is statistical evidence that there is a difference; it does not mean the… … Wikipedia
statistical sampling — The use of random selection and probability theory to determine the size of a sample and to evaluate the results using this sample. Statistical sampling provides a measure of the sampling risk to assist an auditor to draw conclusions on the total … Accounting dictionary
