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Sigma (/
ˈsɪɡmə/ SIG-mə;
uppercase Σ,
lowercase σ,
lowercase in word-final
position ς;
Ancient Gr****: σίγμα) is the
eighteenth letter of the Gr**** alphabet...
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Sigma Sigma Sigma (ΣΣΣ), also
known as Tri
Sigma, is a
national American women's sorority.
Sigma Sigma Sigma is a
member of the
National Pan****enic Conference...
- "
Sigma Boy" (Russian: "Сигма Бой") is a song by
Russian bloggers 11-year-old
Betsy and 12-year-old
Maria Yankovskaya,
released as a
single by the record...
- Six
Sigma (6σ) is a set of
techniques and
tools for
process improvement. It was
introduced by
American engineer Bill
Smith while working at
Motorola in...
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sigma,
Sigma, Σ, σ, or ς in Wiktionary, the free dictionary.
Sigma (Σ or σ, word-final
lowercase ς) is the 18th
letter of the Gr**** alphabet.
Sigma may...
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represented in
mathematical texts and
equations by the
lowercase Gr****
letter σ (
sigma), for the po****tion
standard deviation, or the
Latin letter s, for the...
- Phi
Sigma Sigma (ΦΣΣ),
colloquially known as Phi Sig, was the
first collegiate nonsectarian sorority to
allow membership of
women of all
faiths and backgrounds...
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Sigma 6 may
refer to: G.I. Joe:
Sigma 6, a line of military-themed
action figures and toys SDS
Sigma 6, one of the SDS
Sigma series of
computers made by...
- -1\
sigma \leq X\leq \mu +1\
sigma )&\approx 68.27\%\\\Pr(\mu -2\
sigma \leq X\leq \mu +2\
sigma )&\approx 95.45\%\\\Pr(\mu -3\
sigma \leq X\leq \mu +3\
sigma...
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parameter σ 2 {\textstyle \
sigma ^{2}} is the variance. The
standard deviation of the
distribution is σ {\textstyle \
sigma } (
sigma). A
random variable with...
