The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.
Used in a Sentence
sigmas
Definitions, parts of speech, synonyms, and sentence examples for sigmas.
Editorial note
Unless you like econometrics: then X are data, betas and gammas and sigmas are unknown (oh my!).
Examples16
Definitions4
Parts of speech1
Quick take
The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.
Meaning at a glance
The clearest senses and uses of sigmas gathered in one view.
A municipality of Capiz, Philippines.
(mathematics) The symbol Σ, used to indicate summation of a set or series.
Definitions
Core meanings and parts of speech for sigmas.
noun
The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.
noun
A municipality of Capiz, Philippines.
noun
(mathematics) The symbol Σ, used to indicate summation of a set or series.
noun
(statistics) The symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution.
Example sentences
Unless you like econometrics: then X are data, betas and gammas and sigmas are unknown (oh my!).
By having a couple years of savings, you are probably actually 3 or 4 sigmas ahead.
The rest of us live in middle-of-the-curve land, where vengeful sigmas kill more people from heart disease than almost everything else.
Variances are acquired by statistical tests of data sets, standard deviations (sigmas) are acquired from variances, and conclusions are drawn from sigmas only to the degree that they are applied to normal distributions.
So the only missing part is to prove the existence of the Higgs bosons, and it's almost done (5-sigmas next year?).
I'd hand them a copy of my definitions sheet covered in capital pi's and sigmas.
C) Guaranteed hookup with a member of the desired sex and gender--one who is in two sigmas high in attractiveness and who is economically stable.
Lots of scary looking formulas with sigmas and other Greek letters.
How do we rewrite Black-Scholes option pricing theory and Markowitz portfolio theory in terms of MAD and remove all the sigmas everywhere?
Maybe you don't know that the sigmas there represent summation.
The business case for using Excel overwhelms engineering best practices up to somewhere around five or six sigmas.
If you have watched even a single episode of What Not to Wear you'd have known that most women, especially ones with breast sizes a couple of sigmas away from the mean, have no easy way to buy a well-fitted bra.
Quote examples
Their papers are explicitly frequentist, they celebrate results based on how many "sigmas" they get.
Interesting example of a pdf which is borked in the Firefox built-in reader, the summations ("Sigmas") are vertically stretched, this not seen in Evince for example.
So I'm going to assume they use the term "believe" as a layman replacement for "confident up to x sigmas".
With the gender imbalance in higher education swinging the other way, one hopes that enough glass ceilings are eliminated that we can normalize to a state where "legitimate harassment" is four or five sigmas outside normal professional behavior.
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use sigmas in a sentence?
Unless you like econometrics: then X are data, betas and gammas and sigmas are unknown (oh my!).
What does sigmas mean?
The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.
What part of speech is sigmas?
sigmas is commonly used as noun.