zero variance
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Variance — In probability theory and statistics, the variance of a random variable, probability distribution, or sample is one measure of statistical dispersion, averaging the squared distance of its possible values from the expected value (mean). Whereas… … Wikipedia
Allan variance — The Allan variance, named after David W. Allan, is a measurement of stability in clocks and oscillators. It is also known as the two sample variance.It is defined as one half of the time average of the squares of the differences between… … Wikipedia
Matrice De Variance-Covariance — Une matrice de variance covariance est une matrice carrée caractérisant les interactions (linéaires) entre p variables aléatoires . Sommaire 1 Définition 2 Propriétés … Wikipédia en Français
Cosmic variance — For the weblog, see Cosmic Variance (blog). Physical cosmology Universe … Wikipedia
Matrice de variance-covariance — Une matrice de variance covariance est une matrice carrée caractérisant les interactions (linéaires) entre p variables aléatoires . Sommaire 1 Définition 2 Propriétés 3 … Wikipédia en Français
Normal variance-mean mixture — In probability theory and statistics, a normal variance mean mixture with mixing probability density g is the continuous probability distribution of a random variable Y of the form where α and β are real numbers and σ > 0 and random variables… … Wikipedia
Principe zéro de la thermodynamique — Le principe zéro de la thermodynamique permet de définir en thermodynamique la notion de température, en tant que grandeur repérable. La thermométrie est du ressort de ce principe zéro. L étude du gaz réel aux basses pressions permettra (via la… … Wikipédia en Français
Principe zero de la thermodynamique — Principe zéro de la thermodynamique Le principe zéro de la thermodynamique permet de définir en thermodynamique la notion de température, en tant que grandeur repérable. La thermométrie est du ressort de ce principe zéro. L étude du gaz réel aux… … Wikipédia en Français
Constant amplitude zero autocorrelation waveform — A Constant Amplitude Zero AutoCorrelation waveform (abbreviated CAZAC) is a periodic complex valued signal with modulus one and out of phase periodic (cyclic) autocorrelation equal to zero. CAZAC sequences find application in wireless… … Wikipedia
Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function … Wikipedia
Modern portfolio theory — Portfolio analysis redirects here. For theorems about the mean variance efficient frontier, see Mutual fund separation theorem. For non mean variance portfolio analysis, see Marginal conditional stochastic dominance. Modern portfolio theory (MPT) … Wikipedia