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  2. Effect size - Wikipedia

    en.wikipedia.org/wiki/Effect_size

    In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of one parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size ...

  3. Estimated time of arrival - Wikipedia

    en.wikipedia.org/wiki/Estimated_Time_of_Arrival

    The estimated time of arrival (ETA) is the time when a ship, vehicle, aircraft, cargo, person, or emergency service is expected to arrive at a certain place. [ 1 ] [ 2 ] [ 3 ] Overview

  4. Event tree analysis - Wikipedia

    en.wikipedia.org/wiki/Event_tree_analysis

    Performing a probabilistic risk assessment starts with a set of initiating events that change the state or configuration of the system. [3] An initiating event is an event that starts a reaction, such as the way a spark (initiating event) can start a fire that could lead to other events (intermediate events) such as a tree burning down, and then finally an outcome, for example, the burnt tree ...

  5. Glossary of probability and statistics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_probability...

    Also confidence coefficient. A number indicating the probability that the confidence interval (range) captures the true population mean. For example, a confidence interval with a 95% confidence level has a 95% chance of capturing the population mean. Technically, this means that, if the experiment were repeated many times, 95% of the CIs computed at this level would contain the true population ...

  6. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the partial regression coefficient in statistics, also interpreted as an effect size measure for analyses of variance; the eta meson; viscosity; the Dedekind eta function; energy conversion efficiency; efficiency (physics) the Minkowski metric tensor in relativity; η-conversion in lambda calculus [12] the learning rate in machine learning and ...

  7. Correlation ratio - Wikipedia

    en.wikipedia.org/wiki/Correlation_ratio

    Statistics: 65, 95, 80, 70, 85 and 73 (6 scores). Then the subject averages are 36, 33 and 78, with an overall average of 52. The sums of squares of the differences from the subject averages are 1952 for Algebra, 308 for Geometry and 600 for Statistics, adding to 2860. The overall sum of squares of the differences from the overall average is 9640.

  8. Mean - Wikipedia

    en.wikipedia.org/wiki/Mean

    A mean is a quantity representing the "center" of a collection of numbers and is intermediate to the extreme values of the set of numbers. [1] There are several kinds of means (or "measures of central tendency") in mathematics, especially in statistics.

  9. Beta normal form - Wikipedia

    en.wikipedia.org/wiki/Beta_normal_form

    A term is in beta-eta normal form if neither a beta reduction nor an eta reduction is possible. A term is in head normal form if there is no beta-redex in the head position. The normal form of a term, if one exists, is unique (as a corollary of the Church–Rosser theorem). [2] However, a term may have more than one head normal form.