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  2. Percentile - Wikipedia

    en.wikipedia.org/wiki/Percentile

    In statistics, a k-th percentile, also known as percentile score or centile, is a score below which a given percentage k of scores in its frequency distribution falls ("exclusive" definition) or a score at or below which a given percentage falls ("inclusive" definition); i.e. a score in the k-th percentile would be above approximately k% of all scores in its set.

  3. Academic grading in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    K–12 (Kindergarten and Basic Education) always uses the Percent Grade, Letter Grade, or both. GWA (general weighted average; similar to GPA) is a representation (often numerical) of the overall scholastic standing of students used for evaluation. GWA is based on the grades in all subjects taken at a particular level including subjects taken ...

  4. Per-unit system - Wikipedia

    en.wikipedia.org/wiki/Per-unit_system

    a. If system reactance is given in percent, use Eq. 16 to change from one kva base to another. b. If system reactance is given in short-circuit symmetrical rms kva or current, convert to per-unit as follows: 18

  5. Grading systems by country - Wikipedia

    en.wikipedia.org/wiki/Grading_systems_by_country

    A percentage above 65% is referred to as the 1st Division and indicates a high intellectual level. Some universities follow a weighted average pattern to calculate percentage: 1st and 2nd Semester – 40% of the aggregate marks, 3rd and 4th Semester – 60% of the aggregate marks, 5th and 6th Semester – 80% of the aggregate marks, 7th and 8th ...

  6. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    This is not the usual way to specify slope; this nonstandard expression follows the sine function rather than the tangent function, so it calls a 45 degree slope a 71 percent grade instead of a 100 percent. But in practice the usual way to calculate slope is to measure the distance along the slope and the vertical rise, and calculate the ...

  7. List of countries by past and projected future population ...

    en.wikipedia.org/wiki/List_of_countries_by_past...

    Thus, the figures after the 1960 column show the percentage annual growth for the 1955-60 period; the figures after the 1980 column calculate the same value for 1975–80; and so on. The formulas used for the annual growth rates are the standard ones, used both by the United Nations Statistics Division and by National Census Offices worldwide.

  8. Logistic regression - Wikipedia

    en.wikipedia.org/wiki/Logistic_regression

    The corresponding probability of the value labeled "1" can vary between 0 (certainly the value "0") and 1 (certainly the value "1"), hence the labeling; [2] the function that converts log-odds to probability is the logistic function, hence the name.

  9. R-value (insulation) - Wikipedia

    en.wikipedia.org/wiki/R-value_(insulation)

    The R-value is the building industry term [3] for thermal resistance "per unit area." [4] It is sometimes denoted RSI-value if the SI units are used. [5] An R-value can be given for a material (e.g., for polyethylene foam), or for an assembly of materials (e.g., a wall or a window). In the case of materials, it is often expressed in terms of R ...