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The McDonnell Douglas F-15 Eagle is an American twin-engine, all-weather fighter aircraft designed by McDonnell Douglas (now part of Boeing ). Following reviews of proposals, the United States Air Force (USAF) selected McDonnell Douglas's design in 1969 to meet the service's need for a dedicated air superiority fighter.
OnlyFans is an internet content subscription service based in London, United Kingdom. [3] The service is used primarily by sex workers who produce pornography, [3] [4] but it also hosts the work of other content creators, such as physical fitness experts and musicians.
Pearson's correlation coefficient is the covariance of the two variables divided by the product of their standard deviations. The form of the definition involves a "product moment", that is, the mean (the first moment about the origin) of the product of the mean-adjusted random variables; hence the modifier product-moment in the name.
In mathematics, a spherical coordinate system is a coordinate system for three-dimensional space where the position of a given point in space is specified by three real numbers: the radial distance r along the radial line connecting the point to the fixed point of origin; the polar angle θ between the radial line and a polar axis; and the ...
MasterChef Junior. MasterChef is an American competitive cooking reality television series that premiered on Fox on July 27, 2010. [1] Based on the British series of the same name and produced by Endemol Shine North America and One Potato Two Potato, the series features amateur and home chefs competing to win the title of 'MasterChef'. [2]
Aluminium ( Aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals, about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air.
The standard deviation of a random variable, sample, statistical population, data set, or probability distributionis the square rootof its variance. It is algebraicallysimpler, though in practice less robust, than the average absolute deviation.