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Poisson's ratio. In materials science and solid mechanics, Poisson's ratio ν (nu) is a measure of the Poisson effect, the deformation (expansion or contraction) of a material in directions perpendicular to the specific direction of loading. The value of Poisson's ratio is the negative of the ratio of transverse strain to axial strain.
A discrete random variable X is said to have a Poisson distribution, with parameter if it has a probability mass function given by: [2]: 60 where k is the number of occurrences ( k = 0 , 1 , 2 , … {\displaystyle k=0,1,2,\ldots } ) e is Euler's number ( e = 2.71828 … {\displaystyle e=2.71828\ldots } ) k! = k (k– 1) ··· (3) (2) (1) is the factorial. The positive real number λ is equal ...
A Poisson regression model is sometimes known as a log-linear model, especially when used to model contingency tables. Negative binomial regression is a popular generalization of Poisson regression because it loosens the highly restrictive assumption that the variance is equal to the mean made by the Poisson model.
Conway–Maxwell–Poisson. In probability theory and statistics, the Conway–Maxwell–Poisson (CMP or COM–Poisson) distribution is a discrete probability distribution named after Richard W. Conway, William L. Maxwell, and Siméon Denis Poisson that generalizes the Poisson distribution by adding a parameter to model overdispersion and ...
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A Cox point process, Cox process or doubly stochastic Poisson process is a generalization of the Poisson point process by letting its intensity measure to be also random and independent of the underlying Poisson process.
Islam in Malaysia is represented by the Shafi‘i school of Sunni jurisprudence. [2][3] Islam was introduced to Malaysia by traders arriving from Persia, Arabia, China and the Indian subcontinent.
On the Indian subcontinent, Islam first appeared in the southwestern tip of the peninsula, in today's Kerala state. Arabs traded with Malabar even before the birth of Muhammad. Native legends say that a group of Sahaba, under Malik Ibn Deenar, arrived on the Malabar Coast and preached Islam.