Sigma vs Enigma - What's the difference?
sigma | enigma |
The name for the eighteenth letter of the Classical]] and Modern Greek, the twentieth letter of Old and [[Ancient Greek, Ancient.
(mathematics) The symbol ? , used to indicate summation of a set or series.
(statistics) The symbol ? , used to indicate one standard deviation from the mean, particularly in a normal distribution.
* 2011 , Paul Rincon, (bbc.co.uk)
Something or someone puzzling, mysterious or inexplicable.
A riddle, or a difficult problem.
As nouns the difference between sigma and enigma
is that sigma is the name for the eighteenth letter of the Classical and Modern Greek, the twentieth letter of Old and Ancient while enigma is something or someone puzzling, mysterious or inexplicable.As a proper noun Enigma is
a German device used during World War II to encode strategic messages.sigma
English
Noun
(en noun)LHC: Higgs boson 'may have been glimpsed'
- None of the spikes seen by the experiments is at much more than the "two sigma" level of certainty.
A level of "five sigma" is required to claim a discovery, meaning there is less than a one in a million chance the data spike is down to a statistical fluke.
Derived terms
* sigmalike * within one sigma: the range from the mean, plus or minus one standard deviation, usually covering 68% of the data points in a normal distributionenigma
English
(wikipedia enigma)Alternative forms
* (chiefly archaic)Noun
(en-noun)“enigma'” listed by ' Dictionary.com Unabridged (v1·1)