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A pie chart showing the percentage by web browser visiting Wikimedia sites (April 2009 to 2012). In mathematics, a percentage (from Latin per centum 'by a hundred') is a number or ratio expressed as a fraction of 100.
Authors such as Ben Goldacre believe that the risk difference is best presented as a natural number - drug reduces 2 cases of colon cancer to 1 case if you treat 10,000 people. Natural numbers, which are used in the number needed to treat approach, are easily understood by non-experts.
Number of Internet users in 2011 This map illustrates the total number of Internet users in a country as well as the percentage of the population that had Internet access in 2011. Source: Information Geographies at the Oxford Internet Institute . [ 11 ]
The airborne fraction is a scaling factor defined as the ratio of the annual increase in atmospheric CO 2 to the CO 2 emissions from human sources. [1] It represents the proportion of human emitted CO 2 that remains in the atmosphere. Observations over the past six decades show that the airborne fraction has remained relatively stable at around ...
All the phones have an operating system, but only a fraction of them are smartphones with an OS capable of running modern applications. Currently, 3.1 billion smartphones and tablets are in use across the world (with tablets, a small fraction of the total, generally running the same operating systems, Android or iOS, the latter being more ...
From 1787 to 1868, enslaved African Americans were counted in the U.S. census under the Three-fifths Compromise.The compromise was an agreement reached during the 1787 United States Constitutional Convention over the counting of slaves in determining a state's total population.
Moreover, since 87% of American households had a television in 1960 [and that the] fraction of Americans lacking access to television in 1960 was concentrated in rural areas, and particularly in southern and western states, places that were unlikely to hold significant proportions of Catholic voters. [55]
Estimates of world population by their nature are an aspect of modernity, possible only since the Age of Discovery.Early estimates for the population of the world [10] date to the 17th century: William Petty, in 1682, estimated the world population at 320 million (current estimates ranging close to twice this number); by the late 18th century, estimates ranged close to one billion (consistent ...