![]() (noun) : the 18th letter of the Greek alphabet. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sigma.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Please find 1 English and 1 Urdu definitions related to the word Sigma. Daniel Clery, Science | AAAS, 12 July 2018 See More ![]() 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. ( mathematics) the symbol, used to indicate summation of a set or series. She can be a bit of a lone wolf, but she’s charming and charismatic when she wants to be. Sigma women don’t care about peer pressure or societal norms: they do what they want when they want to. Sigma is a personality archetype that was created to contrast alpha and beta. 2019 Typically, only five sigma is needed to call something a discovery. sigma, specifically : the name of the Greek-script letter / . A sigma female is independent, loyal, and assertive. David Grossman, Popular Mechanics, 17 Apr. 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. 2019 The gold standard for discovery is a five- sigma result, comparable to tossing 21 heads in a row. Quanta Magazine, 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). So, they also become good listeners and can catch important facts way better than others. They can not only recharge better in silence, but they also focus on deeper aspects of life. Sigma males like silence more than busy talkative moments. 2019 Thomson and his team must reach five- sigma certainty to definitively claim a discovery. the symbol, indicating summation of the numbers or quantities indicated Greek, of Semitic origin related to Hebrew samekh the eighteenth. The standard deviation of a random variable, sample, statistical population, data set, or probability distribution is the square root of its variance. Sigma males are listeners while alpha males are talkers. Rafi Letzter, Scientific American, 5 Nov. 2012 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). Recent Examples on the Web The fruit fly where wMel comes from also carries sigma-virus, a type that Wolbachia does nothing to protect against.
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