搜尋結果
Chi-squared distribution, showing χ2 on the x -axis and p -value (right tail probability) on the y -axis. A chi-squared test (also chi-square or χ2 test) is a statistical hypothesis test used in the analysis of contingency tables when the sample sizes are large. In simpler terms, this test is primarily used to examine whether two categorical ...
CJK Unified Ideographs is a Unicode block containing the most common CJK ideographs used in modern Chinese, Japanese, Korean and Vietnamese characters. When contrasted with other blocks containing CJK Unified Ideographs, it is also referred to as the Unified Repertoire and Ordering (URO).[3] The block has hundreds of variation sequences ...
The Inaccessible Island rail ( Laterallus rogersi) is a bird found only on Inaccessible Island in the South Atlantic Tristan archipelago. This rail, the smallest extant flightless bird, was described by physician Percy Lowe in 1923. The adult has brown plumage, a black bill, black feet, and red eyes. It occupies most habitats on the island ...
The tōyō kanji, also known as the tōyō kanjihyō (当用漢字表, "list of kanji for general use") are the result of a reform of the Kanji characters of Chinese origin in the Japanese written language. They were the kanji declared "official", i.e. characters that could be used in official government documents, by the Japanese Ministry of Education (文部省) on November 16, 1946.
Violent crime rate by state (2022) This is a list of U.S. states and territories by violent crime rate. It is typically expressed in units of incidents per 100,000 individuals per year; thus, a violent crime rate of 300 (per 100,000 inhabitants) in a population of 100,000 would ...
This form of the ideal gas law is very useful because it links pressure, density, and temperature in a unique formula independent of the quantity of the considered gas. Alternatively, the law may be written in terms of the specific volume v, the reciprocal of density, as. It is common, especially in engineering and meteorological applications ...
COVID-19 pandemic. v. t. e. Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who served as the 45th president of the United States from 2017 to 2021. Trump received a Bachelor of Science in economics from the University of Pennsylvania in 1968, and his father named him president of his real ...
