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A statistic (singular) or sample statistic is any quantity computed from values in a sample which is considered for a statistical purpose. Statistical purposes include estimating a population parameter, describing a sample, or evaluating a hypothesis. The average (or mean) of sample values is a statistic. The term statistic is used both for the ...
In languages with a singular/dual/plural paradigm, the exact meaning of plural depends on whether the dual is obligatory or facultative (optional). [16] In contrast to English and other singular/plural languages where plural means two or more, in languages with an obligatory dual, plural strictly means three or more.
Although the everyday meaning of plural is "more than one", the grammatical term has a slightly different technical meaning. In the English system of grammatical number, singular means "one (or minus one)", and plural means "not singular". In other words, plural means not just "more than one" but also "less than one (except minus one)".
In some languages, including English, expressions that appear to be singular in form may be treated as plural if they are used with a plural sense, as in the government are agreed. The reverse is also possible: the United States is a powerful country. See synesis, and also English plural § Singulars as plural and plurals as singular.
The word statistics ultimately comes from the Latin word Status, meaning "situation" or "condition" in society, which in late Latin adopted the meaning "state". Derived from this, political scientist Gottfried Achenwall, coined the German word statistik (a summary of how things stand).
The word data is most often used as a singular collective mass noun in educated everyday usage. [1] [2] However, due to the history and etymology of the word, considerable controversy has existed on whether it should be considered a mass noun used with verbs conjugated in the singular, or should be treated as the plural of the now-rarely-used datum.
Dual (abbreviated DU) is a grammatical number that some languages use in addition to singular and plural.When a noun or pronoun appears in dual form, it is interpreted as referring to precisely two of the entities (objects or persons) identified by the noun or pronoun acting as a single unit or in unison.
Welsh has two systems of grammatical number, singular–plural and collective–singulative. Since the loss of the noun inflection system of earlier Celtic, plurals have become unpredictable and can be formed in several ways: by adding a suffix to the end of the word (most commonly -au), as in tad "father" and tadau "fathers", through vowel affection, as in bachgen "boy" and bechgyn "boys", or ...