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It was developed 9 years before the Gini coefficient, which quantifies the extent to which the Lorenz curve deviates from the perfect equality line (with slope of 1). The Hoover index (also known as Robin Hood index) presents the percentage of total population's income that would have to be redistributed to make the Gini coefficient equal to 0 ...
The ratio of width to height of standard-definition television. In mathematics, a ratio (/ ˈ r eɪ ʃ (i) oʊ /) shows how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).
The seats-to-votes ratio, [1] also known as the advantage ratio, [2] is a measure of equal representation of voters.The equation for seats-to-votes ratio for a political party i is:
Age-weighting is based on the theory of human capital. Commonly, years lived as a young adult are valued more highly than years spent as a young child or older adult, as these are years of peak productivity. Age-weighting receives considerable criticism for valuing young adults at the expense of children and the old.
Income of a given percentage as a ratio to median, for 10th (red), 20th, 50th, 80th, 90th, and 95th (grey) percentile, for 1967–2003 in the United States (50th percentile is 1:1 by definition) Particularly common to compare a given percentile to the median, as in the first chart here; compare seven-number summary , which summarizes a ...
Human sex ratios, either at birth or in the population as a whole, can be reported in any of four ways: the ratio of males to females, the ratio of females to males, the proportion of males, or the proportion of females. If there are 108,000 males and 100,000 females the ratio of males to females is 1.08 and the proportion of males is 51.9%.
U.S. unemployment rate and employment to population ratio (EM ratio) Wage share and employment rate in the U.S. Employment-to-population ratio, also called the employment rate, [1] is a statistical ratio that measures the proportion of a country's working age population (statistics are often given for ages 15 to 64 [2] [3]) that is employed.
For example, figures may be biased as follows: if one classroom has a 30:1 ratio and another has a 10:1 ratio, the school could thus claim to have a 20:1 ratio overall. In schools, such ratios are indicative of possible staff changes. If the student–teacher ratio is 50:1, the school will probably consider hiring more teachers.