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Percentage. In mathematics, a percentage (from Latin per centum 'by a hundred') is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign (%), [1] although the abbreviations pct., pct, and sometimes pc are also used. [2] A percentage is a dimensionless number (pure number), primarily used for expressing ...
Statistics (from German: Statistik, orig. "description of a state, a country") [1][2] is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. [3][4][5] In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a ...
Two numbers. A geometric construction of the three Pythagorean means of two numbers, a and b. The harmonic mean is denoted by H in purple, while the arithmetic mean is A in red and the geometric mean is G in blue. Q denotes a fourth mean, the quadratic mean.
Zakat is the Arabic word for "Giving to Charity" or "Giving to the Needy". [ a ] [ 3 ] Zakat is a form of almsgiving , often collected by the Muslim Ummah . [ 1 ] It is considered in Islam a religious obligation, [ 4 ] [ 5 ] and by Quranic ranking, is next after prayer ( salat ) in importance. [ 6 ]
Statistical significance. In statistical hypothesis testing, [1][2] a result has statistical significance when a result at least as "extreme" would be very infrequent if the null hypothesis were true. [3] More precisely, a study's defined significance level, denoted by , is the probability of the study rejecting the null hypothesis, given that ...
The size of the English Wikipedia can be measured in terms of the number of articles, number of words, number of pages, and the size of the database, among other ways. As of 15 September 2024, there are 6,883,207 articles in the English Wikipedia containing over 4.6 billion words (giving an average of about 681 words per article).
Square (algebra) 5⋅5, or 52 (5 squared), can be shown graphically using a square. Each block represents one unit, 1⋅1, and the entire square represents 5⋅5, or the area of the square. In mathematics, a square is the result of multiplying a number by itself. The verb "to square" is used to denote this operation.
After the abolition of slavery in 1873 and the Spanish–American War of 1898, a number of African Americans have also migrated and settled in Puerto Rico. Three of the most famous Afro–Latin Americans are Puerto Rican Boxer Felix "Tito" Trinidad , Hall of Fame baseball player Roberto Clemente and Bernie Williams-Figueroa Jr.