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  2. Wikipedia:Graphs and charts - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Graphs_and_charts

    The template offers complex formatting and labeling options to control the output. Typically, each use is made into its own template, and the template is then transcluded into the article. See an example here, and an example of it being used in an article here. The use of fixed images, such as File:Narnia Timeline.svg, was common in the past ...

  3. Census - Wikipedia

    en.wikipedia.org/wiki/Census

    A census is often construed as the opposite of a sample as it intends to count everyone in a population, rather than a fraction. However, population censuses do rely on a sampling frame to count the population. This is the only way to be sure that everyone has been included, as otherwise those not responding would not be followed up on and ...

  4. Solar-cell efficiency - Wikipedia

    en.wikipedia.org/wiki/Solar-cell_efficiency

    Solar-cell efficiency is the portion of energy in the form of sunlight that can be converted via photovoltaics into electricity by the solar cell. The efficiency of the solar cells used in a photovoltaic system , in combination with latitude and climate, determines the annual energy output of the system.

  5. Usage share of web browsers - Wikipedia

    en.wikipedia.org/wiki/Usage_share_of_web_browsers

    32.2% Primary Browser in 12 Months: April 1998 70% 22.7% Browser Expected to Use in 12 Months: October 1997 59.67% 15.13% Browser Expected to Use in 12 Months:

  6. List of countries by percentage of population living in poverty

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

    The World Bank updated the global poverty lines in September 2022. The decision follows the release in 2020 of new purchasing power parities (PPPs)—the main data used to convert different currencies into a common, comparable unit and account for price differences across countries.

  7. Flat tax - Wikipedia

    en.wikipedia.org/wiki/Flat_tax

    The fraction of household income that is a return to capital (dividends, interest, royalties, profits of unincorporated businesses) is positively correlated with total household income. [citation needed] Hence a flat tax limited to wages would seem to leave the wealthy better off. Modifying the tax base can change the effects.

  8. COVID-19 testing - Wikipedia

    en.wikipedia.org/wiki/COVID-19_testing

    Antibody tests can be used to assess what fraction of a population has once been infected, which can then be used to calculate the disease's mortality rate. [5] They can also be used to determine how much antibody is contained in a unit of convalescent plasma, for COVID-19 treatment, or to verify if a given vaccine generates an adequate immune ...

  9. Tax - Wikipedia

    en.wikipedia.org/wiki/Tax

    Excise duties were first introduced into England in the year 1643, as part of a scheme of revenue and taxation devised by parliamentarian John Pym and approved by the Long Parliament. These duties consisted of charges on beer, ale, cider, cherry wine, and tobacco, to which list were afterward added paper, soap, candles, malt, hops, and sweets.