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  2. Interquartile range - Wikipedia

    en.wikipedia.org/wiki/Interquartile_range

    The IQR may also be called the midspread, middle 50%, fourth spread, or H‑spread. It is defined as the difference between the 75th and 25th percentiles of the data. [ 2 ] [ 3 ] [ 4 ] To calculate the IQR, the data set is divided into quartiles , or four rank-ordered even parts via linear interpolation. [ 1 ]

  3. Box plot - Wikipedia

    en.wikipedia.org/wiki/Box_plot

    Figure 2. Box-plot with whiskers from minimum to maximum Figure 3. Same box-plot with whiskers drawn within the 1.5 IQR value. A boxplot is a standardized way of displaying the dataset based on the five-number summary: the minimum, the maximum, the sample median, and the first and third quartiles.

  4. 1.5 - Wikipedia

    en.wikipedia.org/wiki/1.5

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  5. Betting in poker - Wikipedia

    en.wikipedia.org/wiki/Betting_in_poker

    Betting limits apply to the amount a player may open or raise, and come in four common forms: no limit, pot limit (the two collectively called big bet poker), fixed limit, and spread limit. All such games have a minimum bet as well as the stated maximums, and also commonly a betting unit, which is the smallest denomination in which bets can be ...

  6. Spread betting - Wikipedia

    en.wikipedia.org/wiki/Spread_betting

    A point spread is a range of outcomes and the bet is whether the outcome will be above or below the spread. As of 2006, spread betting was a major growth market in the UK, with the number of gamblers heading towards one million. [1] Financial spread betting (see below) can carry a high level of risk if there is no "stop". [2]

  7. Mathematical diagram - Wikipedia

    en.wikipedia.org/wiki/Mathematical_diagram

    The butterfly diagram show a data-flow diagram connecting the inputs x (left) to the outputs y that depend on them (right) for a "butterfly" step of a radix-2 Cooley–Tukey FFT algorithm. This diagram resembles a butterfly as in the Morpho butterfly shown for comparison, hence the name. A commutative diagram depicting the five lemma

  8. Tree measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_measurement

    Crown spread is a measure of the footprint or plan area of the crown of the tree expressed as a diameter. [2] The most basic crown spread measurement is the average length of two lines across the crown area. The first measurement is made along the longest axis of the crown from one edge to the opposite edge.

  9. f-number - Wikipedia

    en.wikipedia.org/wiki/F-number

    The f-number N is given by: = where f is the focal length, and D is the diameter of the entrance pupil (effective aperture).It is customary to write f-numbers preceded by "f /", which forms a mathematical expression of the entrance pupil's diameter in terms of f and N. [1]