What is the difference between summation and sigma?
summation | sigma |
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)
In mathematics terms the difference between summation and sigma
is that summation is : An adding up of a series of items while sigma is the symbol Σ, used to indicate summation of a set or series.As nouns the difference between summation and sigma
is that summation is a summarization while sigma is the name for the eighteenth letter of the Classical and Modern Greek, the twentieth letter of Old and Ancient.summation
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See also
* addition, summation: (augend) + (addend) = (summand) × (summand) = (sum, total) * subtraction: (minuend) ? (subtrahend) = (difference) * multiplication: (multiplier) × (multiplicand) = (factor) × (factor) = (product) * division: (dividend) ÷ (divisor) = (quotient), remainder left over if divisor does not divide dividend * integration *sigma
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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.