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Informally, in frequentist statistics, a confidence interval (CI) is an interval which is expected to typically contain the parameter being estimated....

In mathematics, physics, and engineering, a Euclidean vector or simply a vector (sometimes called a geometric vector or spatial vector) is a geometric...

In linear algebra, an n-by-n square matrix A is called invertible (also nonsingular, nondegenerate or rarely regular) if there exists an n-by-n square...

In set theory, an ordinal number, or ordinal, is a generalization of ordinal numerals (first, second, nth, etc.) aimed to extend enumeration to infinite...

A syllogism (Greek: συλλογισμός, syllogismos, 'conclusion, inference') is a kind of logical argument that applies deductive reasoning to arrive at a conclusion...

In mathematical logic, Russell's paradox (also known as Russell's antinomy) is a set-theoretic paradox published by the British philosopher and mathematician...

In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of...

Pretty Good Privacy (PGP) is an encryption program that provides cryptographic privacy and authentication for data communication. PGP is used for signing...

Data collection or data gathering is the process of gathering and measuring information on targeted variables in an established system, which then enables...

Survival analysis is a branch of statistics for analyzing the expected duration of time until one event occurs, such as death in biological organisms and...

In geometry, a hypotenuse is the side of a right triangle opposite the right angle. It is the longest side of any such triangle; the two other shorter...

In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth, which in classical...

In geometry, a Coxeter–Dynkin diagram (or Coxeter diagram, Coxeter graph) is a graph with numerically labeled edges (called branches) representing a Coxeter...

In mathematics, and in other disciplines involving formal languages, including mathematical logic and computer science, a variable may be said to be either...

In cryptology, a code is a method used to encrypt a message that operates at the level of meaning; that is, words or phrases are converted into something...

In statistical inference, specifically predictive inference, a prediction interval is an estimate of an interval in which a future observation will fall...

In logic and linguistics, a metalanguage is a language used to describe another language, often called the object language. Expressions in a metalanguage...

Model selection is the task of selecting a model from among various candidates on the basis of performance criterion to choose the best one. In the context...

In statistics, probability theory, and information theory, a statistical distance quantifies the distance between two statistical objects, which can be...

Linear trend estimation is a statistical technique used to analyze data patterns. Data patterns, or trends, occur when the information gathered tends to...