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  2. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    A simple fraction (also known as a common fraction or vulgar fraction, where vulgar is Latin for "common") is a rational number written as a / b or ⁠ ⁠, where a and b are both integers. [9] As with other fractions, the denominator (b) cannot be zero. Examples include ⁠ 1 2 ⁠, − ⁠ 8 5 ⁠, ⁠ −8 5 ⁠, and ⁠ 8 −5 ⁠.

  3. Mixed-member proportional representation - Wikipedia

    en.wikipedia.org/wiki/Mixed-member_proportional...

    t. e. Mixed-member proportional representation (MMP or MMPR) is a type of representation provided by some mixed electoral systems which combine local winner-take-all elections with a compensatory tier with party lists, in a way that produces proportional representation overall. Like proportional representation, MMP is not a single system, but a ...

  4. Historical racial and ethnic demographics of the United ...

    en.wikipedia.org/wiki/Historical_racial_and...

    Asian alone 4.75% (percent in the race/percent in the age group) Native Hawaiian and Other Pacific Islander alone 0.17% (percent in the race/percent in the age group) Some Other Race Alone 6.19% (percent in the race/percent in the age group) Mixed (Two or More Races) 2.92% (percent in the race/percent in the age group) Population: 308 745 538

  5. Volume fraction - Wikipedia

    en.wikipedia.org/wiki/Volume_fraction

    In chemistry and fluid mechanics, the volume fraction is defined as the volume of a constituent Vi divided by the volume of all constituents of the mixture V prior to mixing: [1] Being dimensionless, its unit is 1; it is expressed as a number, e.g., 0.18. It is the same concept as volume percent (vol%) except that the latter is expressed with a ...

  6. One-drop rule - Wikipedia

    en.wikipedia.org/wiki/One-drop_rule

    Mixed-race children of white mothers were born free, and many families of free people of color were started in those years. 80 percent of the free African-American families in the Upper South in the censuses of 1790 to 1810 can be traced as descendants of unions between white women and African men in colonial Virginia, not of slave women and ...

  7. Ratio - Wikipedia

    en.wikipedia.org/wiki/Ratio

    Ratio. In mathematics, a ratio (/ ˈreɪʃ (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). Similarly, the ratio of lemons to oranges is 6:8 (or 3:4) and ...

  8. Mixed electoral system - Wikipedia

    en.wikipedia.org/wiki/Mixed_electoral_system

    A mixed electoral system is one that uses different electoral systems to elect different seats in a legislature. [1][2][3] Most often, this involves a winner-take-all component combined with a proportional component. [4] The results of the combination may be mixed-member proportional (MMP), where the overall results of the elections are ...

  9. Demographics of Haiti - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_Haiti

    According to the 2022 revision of the World Population Prospects [2][3] the total population of Haiti in 2018 was 11,447,569, as compared to 3,221,000 in 1950. In 2015, the proportion of children below the age of 15 was 36.2%. 59.7% of the population was between 15 and 65 years of age, while 4.5% was 65 years or older. [4]