Poisson index of dispersion

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• Index of dispersion — In probability theory and statistics, the index of dispersion,[1] dispersion index, coefficient of dispersion, or variance to mean ratio (VMR), like the coefficient of variation, is a normalized measure of the dispersion of a probability… …   Wikipedia

• Statistical dispersion — In statistics, statistical dispersion (also called statistical variability or variation) is variability or spread in a variable or a probability distribution. Common examples of measures of statistical dispersion are the variance, standard… …   Wikipedia

• Conway-Maxwell-Poisson distribution — Probability distribution name =Conway Maxwell Poisson pdf cdf type =density parameters =lambda > 0, u geq 0 support =x in {0,1,2,dots} pdf =frac{lambda^x}{(x!)^ u}frac{1}{Z(lambda, u)} cdf =sum {i=0}^x mathbb{P}(X = i) mean =sum {j=0}^infty… …   Wikipedia

• Monte Carlo methods for electron transport — The Monte Carlo method for electron transport is a semiclassical Monte Carlo(MC) approach of modeling semiconductor transport. Assuming the carrier motion consists of free flights interrupted by scattering mechanisms, a computer is utilized to… …   Wikipedia

• Control chart — One of the Seven Basic Tools of Quality First described by Walter A. Shewhart …   Wikipedia

• Noncentral t-distribution — Noncentral Student s t Probability density function parameters: degrees of freedom noncentrality parameter support …   Wikipedia

• Descriptive statistics — quantitatively describe the main features of a collection of data.[1] Descriptive statistics are distinguished from inferential statistics (or inductive statistics), in that descriptive statistics aim to summarize a data set, rather than use the… …   Wikipedia

• Kurtosis — In probability theory and statistics, kurtosis (from the Greek word κυρτός, kyrtos or kurtos, meaning bulging) is any measure of the peakedness of the probability distribution of a real valued random variable.[1] In a similar way to the concept… …   Wikipedia

• Overdispersion — In statistics, overdispersion is the presence of greater variability (statistical dispersion) in a data set than would be expected based on a given simple statistical model. A common task in applied statistics is choosing a parametric model to… …   Wikipedia

• Absolute deviation — In statistics, the absolute deviation of an element of a data set is the absolute difference between that element and a given point. Typically the point from which the deviation is measured is a measure of central tendency, most often the median… …   Wikipedia

• Linear regression — Example of simple linear regression, which has one independent variable In statistics, linear regression is an approach to modeling the relationship between a scalar variable y and one or more explanatory variables denoted X. The case of one… …   Wikipedia