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In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable.The general form of its probability density function is = ().
A balanced budget amendment or debt brake is a constitutional rule requiring that a state cannot spend more than its income. It requires a balance between the projected receipts and expenditures of the government.
The history of mathematics deals with the origin of discoveries in mathematics and the mathematical methods and notation of the past.Before the modern age and the worldwide spread of knowledge, written examples of new mathematical developments have come to light only in a few locales.
Two early question answering systems were BASEBALL [4] and LUNAR. [5] BASEBALL answered questions about Major League Baseball over a period of one year [ambiguous]. LUNAR answered questions about the geological analysis of rocks returned by the Apollo Moon missions. Both question answering systems were very effective in their chosen domains.
In 2014, more than 600 million adults were obese, equal to about 13 percent of the world's adult population, [218] with that figure growing to 16% by 2022, according to the World Health Organisation [219] The percentage of adults affected in the United States as of 2015–2016 is about 39.6% overall (37.9% of males and 41.1% of females). [220]
5:8 November 6, 1844: Juan Pablo Duarte: A centered white cross that extends to the edges divides the flag into four rectangles - the top ones are ultramarine blue (hoist side) and vermilion red, and the bottom ones are vermilion red (hoist side) and ultramarine blue; a small coat of arms is at the center of the cross. [264] [265] [266] [267]
Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems.It is a field of research in computer science that develops and studies methods and software that enable machines to perceive their environment and use learning and intelligence to take actions that maximize their chances of achieving defined goals. [1]
Japan has a total fertility rate of 1.4, which is below the replacement rate of 2.1, and is among the world's lowest; [236] it has a median age of 48.4, the highest in the world. [237] As of 2020 [update] , over 28.7 percent of the population is over 65, or more than one in four out of the Japanese population. [ 234 ]