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  2. Population density - Wikipedia

    en.wikipedia.org/wiki/Population_density

    Population density is the number of people per unit of area, usually transcribed as "per square kilometer" or square mile, and which may include or exclude, for example, areas of water or glaciers. Commonly this is calculated for a county , city , country , another territory or the entire world .

  3. Physiological density - Wikipedia

    en.wikipedia.org/wiki/Physiological_density

    The physiological density or real population density is the number of people per unit area of arable land.. A higher physiological density suggests that the available agricultural land is being used by more and may reach its output limit sooner than a country that has a lower physiological density.

  4. Number density - Wikipedia

    en.wikipedia.org/wiki/Number_density

    Using the number density of an ideal gas at 0 °C and 1 atm as a yardstick: n 0 = 1 amg = 2.686 7774 × 10 25 m −3 is often introduced as a unit of number density, for any substances at any conditions (not necessarily limited to an ideal gas at 0 °C and 1 atm). [3]

  5. List of countries and dependencies by population density

    en.wikipedia.org/wiki/List_of_countries_and...

    Population density (people per km 2) by country. This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1.

  6. List of countries by arable land density - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Arable density (m² per capita) by country. This is a list of countries ordered by physiological density."Arable land" is defined by the UN's Food and Agriculture Organization, the source of "Arable land (hectares per person)" as land under temporary crops (double-cropped areas are counted once), temporary meadows for mowing or for pasture, land under market or kitchen gardens, and land ...

  7. Template:Pop density - Wikipedia

    en.wikipedia.org/wiki/Template:Pop_density

    This template converts a population and area to a density. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Number of people 1 no description Example 1600000 Number required Area 2 Numerical value of area Example 240 Number required Unit of area 3 no description Suggested values sqkm km2 mi2 sqmi acres acre ha ...

  8. Density estimation - Wikipedia

    en.wikipedia.org/wiki/Density_Estimation

    The unobservable density function is thought of as the density according to which a large population is distributed; the data are usually thought of as a random sample from that population. [1] A variety of approaches to density estimation are used, including Parzen windows and a range of data clustering techniques, including vector quantization.

  9. List of states and territories of the United States by ...

    en.wikipedia.org/wiki/List_of_states_and...

    Population density is defined as the population divided by land area. Data are from the US Census unless otherwise specified. Population data are for the year 2023 [2] and area data are for the year 2010. [3] Some population estimates for territories are from the United Nations Commission on Population and Development. [4]