P-Distribution

  • Probability Distributions List

A Lexicon of Probability Distributions

  • Bell-shaped distribution

    < List of probability distributions A bell-shaped distribution is – perhaps not surprisingly – any distribution that looks like the shape of a bell when plotted as a graph. These distributions have one peak in the center (i.e., they are unimodal distributions) and are symmetric: if you draw a vertical line down the center of the […]

    June 26, 2022
  • Zero-modified normal distribution

    < List of probability distributions A zero-modified normal distribution is a normal distribution modified to put extra probability mass at 0. In other words, it’s a kind of mixture distribution where part of the population comes from a normal distribution but the rest of the population is all zeros [1]. The probability density function of […]

    June 26, 2022
  • Bates Distribution

    < List of Probability Distributions The Bates Distribution (or rectangular mean distribution) resembles a normal distribution although it can also resemble several other distributions depending on how many items are in the sample. Triangular distribution: n = 2. Uniform distribution: n = 1. Unimodal (normal) distribution: n > 2. More formally, it is the probability distribution of the […]

    June 26, 2022
  • Modified Normal Distribution

    < Probability Distributions List The term modified normal distribution (or equinormal distribution) may refer to any number of distributions that are similar in appearance to a normal distribution (in other words, it’s simply a normal distribution modified in some way). For example, the t distribution is one example of a modified normal distribution [1]. The […]

    June 26, 2022
  • Arcsine Distribution

    Probability Distribution List > The arcsine distribution is a probability distribution with a cumulative distribution function (CDF) involving the arcsine. It is so-named because “arcsin x” is the arc with a sine of x – where sine is a trigonometric function that gives one of three possible ratios of the lengths of a triangle’s sides. The distribution is […]

    May 29, 2022
  • Marshall-Olkin Bivariate Distribution.

    < Probability Distribution List The Marshall–Olkin bivariate distribution, introduced by Albert W. Marshall and Ingram Olkin [1], is a family of continuous multivariate probability distributions that is an extension of the bivariate family of distributions with an extra shape parameter α. It is defined by the proper survival function Where (X, Y) is a random vector with joint […]

    May 15, 2022
  • Discrete Weibull Distribution

    < Probability distributions The discrete Weibull distribution is the discrete variant of the Weibull distribution. It is used to model lifetime data expressed by discrete random variables. For example, it can be used to model equipment that operates in cycles, devices with on/off switches, or equipment with to-and-from motion. Types of Discrete Weibull Distribution Three […]

    May 8, 2022
  • Wrapped Normal Distribution

    List of probability distributions > The wrapped normal distribution (or wrapped up normal distribution) occurs via Brownian motion on a circle.  It is the circular analog of a normal distribution, achieved by wrapping the probability density function (PDF) of a real-valued, linear random variable to the circumference of a unit circle an infinite number of […]

    April 18, 2022
  • Linear Exponential Distribution

    Probability Distributions List > The linear exponential (LE) distribution is an extension of the exponential distribution. It is often used in actuarial science and survival analysis, where it is sometimes called the linear failure rate distribution. The LE describes survival patterns with constant initial hazard rates. The “linear” part of the distribution is the hazard rate, […]

    April 11, 2022
  • Eulerian Distribution

    < Back to Probability Distribution List The term “Eulerian distribution” may refer to: A distribution used in permutation statistics to count descents, or A Type III (p/q, p) distribution. Eulerian Distribution in Permutation Statistics In permutation statistics, the Eulerian distribution is the classical name for the distribution of the descent statistics. A descent in a […]

    March 15, 2022
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