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  2. Power (statistics) - Wikipedia

    en.wikipedia.org/wiki/Power_(statistics)

    The main application of statistical power is "power analysis", a calculation of power usually done before an experiment is conducted using data from pilot studies or a literature review. Power analyses can be used to calculate the minimum sample size required so that one can be reasonably likely to detect an effect of a given size (in other ...

  3. Central tendency - Wikipedia

    en.wikipedia.org/wiki/Central_tendency

    In statistics, a central tendency (or measure of central tendency) is a central or typical value for a probability distribution. [1] Colloquially, measures of central tendency are often called averages. The term central tendency dates from the late 1920s. [2] The most common measures of central tendency are the arithmetic mean, the median, and ...

  4. Centralisation - Wikipedia

    en.wikipedia.org/wiki/Centralisation

    In the ancient Chinese government, the monarchical power was the supreme power in the empire. The emperor monopolised all the resources in the country; his personality and abilities decide the prosperity of the country. This autocratic system allows for faster decision-making and avoids complex solutions to problems that arise.

  5. Central moment - Wikipedia

    en.wikipedia.org/wiki/Central_moment

    In probability theory and statistics, a central moment is a moment of a probability distribution of a random variable about the random variable's mean; that is, it is the expected value of a specified integer power of the deviation of the random variable from the mean. The various moments form one set of values by which the properties of a ...

  6. DeepSeek shows AI's centre of power could shift away from US

    www.aol.com/news/deepseek-shows-ais-centre-power...

    DeepSeek shows AI's centre of power could shift away from US. Marc Cieslak - AI correspondent. January 28, 2025 at 8:56 AM.

  7. Power transform - Wikipedia

    en.wikipedia.org/wiki/Power_transform

    In statistics, a power transform is a family of functions applied to create a monotonic transformation of data using power functions.It is a data transformation technique used to stabilize variance, make the data more normal distribution-like, improve the validity of measures of association (such as the Pearson correlation between variables), and for other data stabilization procedures.

  8. Centerpoint (geometry) - Wikipedia

    en.wikipedia.org/wiki/Centerpoint_(geometry)

    In statistics and computational geometry, the notion of centerpoint is a generalization of the median to data in higher-dimensional Euclidean space.Given a set of points in d-dimensional space, a centerpoint of the set is a point such that any hyperplane that goes through that point divides the set of points in two roughly equal subsets: the smaller part should have at least a 1/(d + 1 ...

  9. Talk:Power (statistics) - Wikipedia

    en.wikipedia.org/wiki/Talk:Power_(statistics)

    7 Calculating statistical power. 1 comment. 8 What does "trade-off" mean? 1 comment. 9 Composite hypothesis. 1 comment. 10 Title. 1 comment ...