单词	sigma
释义	sigma noun sig·​ma ˈsig-mə  1 : the 18th letter of the Greek alphabet see Alphabet Table 2 : standard deviation Example Sentences Recent Examples on the Web According to the group’s calculations, the Planck data point to a closed universe with a standard deviation of 3.5 sigma (a statistical measurement that means about 99.8% confidence that the result isn’t due to random chance). Rafi Letzter, Scientific American, 5 Nov. 2019 Thomson and his team must reach five-sigma certainty to definitively claim a discovery. Quanta Magazine, 14 May 2015 Historically, most industrial companies operate between three and four sigma, making them between 93% and 99.3% defect-free (these figures can vary slightly depending on the statistical model). Oliver Staley, Quartz at Work, 3 Sep. 2019 The gold standard for discovery is a five-sigma result, comparable to tossing 21 heads in a row. Jennifer Ouellette, Quanta Magazine, 18 July 2013 Through regular reports released under the name sigma, the company offers a lens into the changing trends of the insurance world. David Grossman, Popular Mechanics, 17 Apr. 2019 Typically, only five sigma is needed to call something a discovery. John Timmer, Ars Technica, 28 June 2018 Physicists and astronomers, however, aren't usually convinced that two phenomena are connected until there's no more than a one in 3.5 million, or 5 sigma, probability of a coincidence. Daniel Clery, Science | AAAS, 12 July 2018 Physics requires a statistical significance of five sigma to declare discovery; MiniBooNE is tantalizingly close and will probably be there within the next two years. John Timmer, Ars Technica, 8 June 2018 See More Word History Etymology Greek First Known Use 1584, in the meaning defined at sense 1
随便看	circumnutate circumnutated circumnutates circumnutating circumnutation circumnutations circumplanetary circumpolar circumposed circumposes circumposing circumposition circumpositions circumradius circumrotated circumrotates circumrotating circumrotations circumscissile circumscribable circumscribe circumscribed circumscribers circumscribes circumscribing

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