probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable...
150 KB (22,698 words) - 18:48, 25 May 2025
normal distribution, multivariate Gaussian distribution, or joint normal distribution is a generalization of the one-dimensional (univariate) normal distribution...
65 KB (9,594 words) - 15:19, 3 May 2025
In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally...
90 KB (12,551 words) - 22:45, 22 May 2025
and statistics, the skew normal distribution is a continuous probability distribution that generalises the normal distribution to allow for non-zero skewness...
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generalized normal distribution (GND) or generalized Gaussian distribution (GGD) is either of two families of parametric continuous probability distributions on...
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the half-normal distribution is a special case of the folded normal distribution. Let X {\displaystyle X} follow an ordinary normal distribution, N ( 0...
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logit-normal distribution is a probability distribution of a random variable whose logit has a normal distribution. If Y is a random variable with a normal...
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matrix normal distribution or matrix Gaussian distribution is a probability distribution that is a generalization of the multivariate normal distribution to...
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Kurtosis (redirect from Leptokurtic distribution)
of a distribution. A univariate normal distribution has an excess kurtosis of 0. Negative excess kurtosis indicates a platykurtic distribution, which...
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the ratio Z = X/Y is a ratio distribution. An example is the Cauchy distribution (also called the normal ratio distribution), which comes about as the ratio...
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standard normal random variables. The chi-squared distribution χ k 2 {\displaystyle \chi _{k}^{2}} is a special case of the gamma distribution and the...
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The folded normal distribution is a probability distribution related to the normal distribution. Given a normally distributed random variable X with mean...
18 KB (3,424 words) - 02:55, 1 August 2024
standard normal table, also called the unit normal table or Z table, is a mathematical table for the values of Φ, the cumulative distribution function...
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In probability theory, the family of complex normal distributions, denoted C N {\displaystyle {\mathcal {CN}}} or N C {\displaystyle {\mathcal {N}}_{\mathcal...
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continuous probability distribution that generalizes the standard normal distribution. Like the latter, it is symmetric around zero and bell-shaped. However...
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exponential distribution. Alpha-skew-normal distribution. Bimodal skew-symmetric normal distribution. A mixture of Conway-Maxwell-Poisson distributions has been...
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In probability and statistics, the truncated normal distribution is the probability distribution derived from that of a normally distributed random variable...
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Skewness (redirect from Skewed distribution)
skewness of 0 A half-normal distribution has a skewness just below 1 An exponential distribution has a skewness of 2 A lognormal distribution can have a skewness...
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uniform distribution on [0,1]. The logit-normal distribution on (0,1). The Dirac delta function, although not strictly a probability distribution, is a...
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The normal-inverse Gaussian distribution (NIG, also known as the normal-Wald distribution) is a continuous probability distribution that is defined as...
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such as the variance of a normal distribution. If α is a positive integer, then the distribution represents an Erlang distribution; i.e., the sum of α independent...
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von Mises distribution (also known as the circular normal distribution or the Tikhonov distribution) is a continuous probability distribution on the circle...
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enough apart, showing that this distribution is radically different from a normal distribution. Mixture distributions arise in many contexts in the literature...
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theory and statistics, the binomial distribution with parameters n and p is the discrete probability distribution of the number of successes in a sequence...
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discussing general distributions: some specific distributions have their own conventional notation, for example the normal distribution uses Φ {\displaystyle...
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Quantile function (redirect from Inverse distribution function)
cumulative probability is contained. For example, if the distribution is a standard normal distribution then Q ( 0.5 ) {\displaystyle Q(0.5)} will return 0...
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mixture distribution. Normal distribution (Gaussian distribution), for a single such quantity; the most commonly used absolutely continuous distribution Log-normal...
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Kolmogorov–Smirnov test (redirect from Kolmogorov distribution)
of testing for normality of the distribution, samples are standardized and compared with a standard normal distribution. This is equivalent to setting...
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Central limit theorem (redirect from Central limit distribution theorem)
appropriate conditions, the distribution of a normalized version of the sample mean converges to a standard normal distribution. This holds even if the original...
67 KB (9,171 words) - 16:52, 28 April 2025
Mahalanobis distance (section Normal distributions)
mean}}}{\text{standard deviation}}}} . By plugging this into the normal distribution, we can derive the probability of the test point belonging to the...
20 KB (2,736 words) - 11:03, 24 May 2025