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  2. Diehard tests - Wikipedia

    en.wikipedia.org/wiki/Diehard_tests

    This test uses n = 2 24 and m = 2 9, so that the underlying distribution for j is taken to be Poisson with λ = 2 27 / 2 26 = 2. A sample of 500 j s is taken, and a chi-square goodness of fit test provides a p value. The first test uses bits 1–24 (counting from the left) from integers in the specified file. Then the file is closed and reopened.

  3. List of random number generators - Wikipedia

    en.wikipedia.org/wiki/List_of_random_number...

    A SWB generator is the basis for the RANLUX generator, [19] widely used e.g. for particle physics simulations. Maximally periodic reciprocals: 1992 R. A. J. Matthews [20] A method with roots in number theory, although never used in practical applications. KISS: 1993 G. Marsaglia [21] Prototypical example of a combination generator. Multiply ...

  4. Princeton Engineering Anomalies Research Lab - Wikipedia

    en.wikipedia.org/wiki/Princeton_Engineering...

    The Princeton Engineering Anomalies Research (PEAR) was a research program at Princeton University that studied parapsychology. [1] Established in 1979 by then Dean of Engineering Robert G. Jahn, PEAR conducted formal studies on two primary subject areas, psychokinesis (PK) and remote viewing.

  5. Pearson correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Pearson_correlation...

    Pearson's correlation coefficient is the covariance of the two variables divided by the product of their standard deviations. The form of the definition involves a "product moment", that is, the mean (the first moment about the origin) of the product of the mean-adjusted random variables; hence the modifier product-moment in the name.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Pearson distribution - Wikipedia

    en.wikipedia.org/wiki/Pearson_distribution

    A Pearson density p is defined to be any valid solution to the differential equation (cf. Pearson 1895, p. 381) ′ () + + + + = ()with: =, = = +, =. According to Ord, [3] Pearson devised the underlying form of Equation (1) on the basis of, firstly, the formula for the derivative of the logarithm of the density function of the normal distribution (which gives a linear function) and, secondly ...

  8. Pearson - Wikipedia

    en.wikipedia.org/wiki/Pearson

    Pearson (surname) Pearson correlation coefficient, a statistical measure known as Pearson's r; Pearson (motorcycle), a British motorcycle with an Ateliers de Construction Mecanique l'Aster engine; Pearson, an American television series that is a spin-off of Suits

  9. Spearman's rank correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Spearman's_rank_correlation...

    If F(r) is the Fisher transformation of r, the sample Spearman rank correlation coefficient, and n is the sample size, then z = n − 3 1.06 F ( r ) {\displaystyle z={\sqrt {\frac {n-3}{1.06}}}F(r)} is a z -score for r , which approximately follows a standard normal distribution under the null hypothesis of statistical independence ( ρ = 0 ).

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