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  2. Eccentricity (behavior) - Wikipedia

    en.wikipedia.org/wiki/Eccentricity_(behavior)

    Eccentricity (also called quirkiness) is an unusual or odd behavior on the part of an individual. This behavior would typically be perceived as unusual or unnecessary, without being demonstrably maladaptive .

  3. Graph center - Wikipedia

    en.wikipedia.org/wiki/Graph_center

    Equivalently, it is the set of vertices with eccentricity equal to the graph's radius. [3] Thus vertices in the center (central points) minimize the maximal distance from other points in the graph. This is also known as the vertex 1-center problem and can be extended to the vertex k-center problem.

  4. Normality test - Wikipedia

    en.wikipedia.org/wiki/Normality_test

    A graphical tool for assessing normality is the normal probability plot, a quantile-quantile plot (QQ plot) of the standardized data against the standard normal distribution. Here the correlation between the sample data and normal quantiles (a measure of the goodness of fit) measures how well the data are modeled by a normal distribution. For ...

  5. Eccentricity (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Eccentricity_(mathematics)

    In mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape. One can think of the eccentricity as a measure of how much a conic section deviates from being circular. In particular: The eccentricity of a circle is 0. The eccentricity of an ellipse which is not a circle is between 0 and 1.

  6. Category:Eccentricity (behavior) - Wikipedia

    en.wikipedia.org/wiki/Category:Eccentricity...

    Eccentricity is contrasted with normal behavior, the nearly universal means by which individuals in society solve given problems and pursue certain priorities in everyday life. People who consistently display benignly eccentric behavior are labeled as "eccentrics".

  7. F-test of equality of variances - Wikipedia

    en.wikipedia.org/wiki/F-test_of_equality_of...

    In statistics, an F-test of equality of variances is a test for the null hypothesis that two normal populations have the same variance.Notionally, any F-test can be regarded as a comparison of two variances, but the specific case being discussed in this article is that of two populations, where the test statistic used is the ratio of two sample variances. [1]

  8. Category:Normality tests - Wikipedia

    en.wikipedia.org/wiki/Category:Normality_tests

    It should only contain pages that are Normality tests or lists of Normality tests, as well as subcategories containing those things (themselves set categories). Topics about Normality tests in general should be placed in relevant topic categories .

  9. Equation of the center - Wikipedia

    en.wikipedia.org/wiki/Equation_of_the_center

    Note that at low eccentricity (left-hand side of the graph), the series does not need to be carried to high order to produce accurate results. Series-expanded equation of the center as a function of mean anomaly for various eccentricities , with the equation of the center truncated at e 7 for all curves.