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  2. Quartile - Wikipedia

    en.wikipedia.org/wiki/Quartile

    The lower fence is the "lower limit" and the upper fence is the "upper limit" of data, and any data lying outside these defined bounds can be considered an outlier. The fences provide a guideline by which to define an outlier, which may be defined in other ways. The fences define a "range" outside which an outlier exists; a way to picture this ...

  3. Ogive (statistics) - Wikipedia

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

    The points plotted as part of an ogive are the upper class limit and the corresponding cumulative absolute frequency [2] or cumulative relative frequency. The ogive for the normal distribution (on one side of the mean) resembles (one side of) an Arabesque or ogival arch, which is likely the origin of its name.

  4. Upper and lower probabilities - Wikipedia

    en.wikipedia.org/wiki/Upper_and_lower_probabilities

    Because frequentist statistics disallows metaprobabilities, [citation needed] frequentists have had to propose new solutions. Cedric Smith and Arthur Dempster each developed a theory of upper and lower probabilities. Glenn Shafer developed Dempster's theory further, and it is now known as Dempster–Shafer theory or Choquet (1953).

  5. CLs method (particle physics) - Wikipedia

    en.wikipedia.org/wiki/CLs_method_(particle_physics)

    In particle physics, CLs [1] represents a statistical method for setting upper limits (also called exclusion limits [2]) on model parameters, a particular form of interval estimation used for parameters that can take only non-negative values.

  6. Cumulative frequency analysis - Wikipedia

    en.wikipedia.org/wiki/Cumulative_frequency_analysis

    Each group has a lower limit (L k) and an upper limit (U k). When the class ( k ) contains m k data and the total number of data is N , then the relative class or group frequency is found from: Fg ( L k < X ≤ U k ) = m k / N

  7. Prediction interval - Wikipedia

    en.wikipedia.org/wiki/Prediction_interval

    For example, to calculate the 95% prediction interval for a normal distribution with a mean (μ) of 5 and a standard deviation (σ) of 1, then z is approximately 2. Therefore, the lower limit of the prediction interval is approximately 5 ‒ (2⋅1) = 3, and the upper limit is approximately 5 + (2⋅1) = 7, thus giving a prediction interval of ...

  8. Are You Upper, Middle, or Lower Class? Here's How to Find Out

    www.aol.com/upper-middle-lower-class-heres...

    This means that lower-income households had incomes below $56,600, and upper class households had incomes above $169,800. You may be curious to know where you stand in the context of upper, middle ...

  9. Interquartile range - Wikipedia

    en.wikipedia.org/wiki/Interquartile_range

    The lower quartile corresponds with the 25th percentile and the upper quartile corresponds with the 75th percentile, so IQR = Q 3 − Q 1 [1]. The IQR is an example of a trimmed estimator , defined as the 25% trimmed range , which enhances the accuracy of dataset statistics by dropping lower contribution, outlying points. [ 5 ]