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  2. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    The table shown on the right can be used in a two-sample t-test to estimate the sample sizes of an experimental group and a control group that are of equal size, that is, the total number of individuals in the trial is twice that of the number given, and the desired significance level is 0.05. [4]

  3. Table of Clebsch–Gordan coefficients - Wikipedia

    en.wikipedia.org/wiki/Table_of_Clebsch–Gordan...

    This is a table of Clebsch–Gordan coefficients used for adding angular momentum values in quantum mechanics.The overall sign of the coefficients for each set of constant , , is arbitrary to some degree and has been fixed according to the Condon–Shortley and Wigner sign convention as discussed by Baird and Biedenharn. [1]

  4. CRC Standard Mathematical Tables - Wikipedia

    en.wikipedia.org/wiki/CRC_Standard_Mathematical...

    The handbook was originally published in 1928 by the Chemical Rubber Company (now CRC Press) as a supplement (Mathematical Tables) to the CRC Handbook of Chemistry and Physics. Beginning with the 10th edition (1956), it was published as CRC Standard Mathematical Tables and kept this title up to the 29th edition (1991).

  5. 68–95–99.7 rule - Wikipedia

    en.wikipedia.org/wiki/68–95–99.7_rule

    Given a sample set, one can compute the studentized residuals and compare these to the expected frequency: points that fall more than 3 standard deviations from the norm are likely outliers (unless the sample size is significantly large, by which point one expects a sample this extreme), and if there are many points more than 3 standard ...

  6. MDCalc - Wikipedia

    en.wikipedia.org/wiki/MDCalc

    MDCalc is a free online medical reference for healthcare professionals that provides point-of-care clinical decision-support tools, including medical calculators, scoring systems, and algorithms. [1] MDCalc is also a mobile and web app. [ 2 ] The decision-support tools are based on published clinical research, [ 3 ] and MDCalc’s content is ...

  7. Kolakoski sequence - Wikipedia

    en.wikipedia.org/wiki/Kolakoski_sequence

    It seems plausible that the density of 1s in the Kolakoski {1,2}-sequence is 1/2, but this conjecture remains unproved. [6] Václav Chvátal has proved that the upper density of 1s is less than 0.50084. [7] Nilsson has used the same method with far greater computational power to obtain the bound 0.500080. [8]

  8. Expensive Desk Calculator - Wikipedia

    en.wikipedia.org/wiki/Expensive_Desk_Calculator

    Expensive Desk Calculator by Robert A. Wagner is thought to be computing's first interactive calculation program. [1] The software first ran on the TX-0 computer loaned to the Massachusetts Institute of Technology (MIT) by Lincoln Laboratory. It was ported to the PDP-1 donated to MIT in 1961 by Digital Equipment Corporation. [2]

  9. Kuratowski's closure-complement problem - Wikipedia

    en.wikipedia.org/wiki/Kuratowski's_closure...

    The answer is 14. This result was first published by Kazimierz Kuratowski in 1922. [1] It gained additional exposure in Kuratowski's fundamental monograph Topologie (first published in French in 1933; the first English translation appeared in 1966) before achieving fame as a textbook exercise in John L. Kelley's 1955 classic, General Topology. [2]