EmpiricalDistribution[{x_1, x_2, ...}] represents an empirical distribution based on the data values x_i.EmpiricalDistribution[{{x_1, y_1, ...}, {x_2, y_2, ...}, ...}] ...
Integers represents the domain of integers, as in x \[Element] Integers.
Tally
(Built-in Mathematica Symbol) Tally[list] tallies the elements in list, listing all distinct elements together with their multiplicities.Tally[list, test] uses test to determine whether pairs of elements ...
Abs
(Built-in Mathematica Symbol) Abs[z] gives the absolute value of the real or complex number z.
ExactRandomGraph[n, e] constructs a random labeled graph of exactly e edges and n vertices.
InverseFourierCoefficient[expr, n, t] gives the function of t whose Fourier exponential series representation has coefficients given by expr, where expr is a function of n.
BellB
(Built-in Mathematica Symbol) BellB[n] gives the Bell number B_n. BellB[n, x] gives the Bell polynomial B_n (x).
FourierCosTransform[expr, t, \[Omega]] gives the symbolic Fourier cosine transform of expr. FourierCosTransform[expr, {t_1, t_2, ...}, {\[Omega]_1, \[Omega]_2, ...}] gives ...
WeibullDistribution[\[Alpha], \[Beta]] represents a Weibull distribution with shape parameter \[Alpha] and scale parameter \[Beta].WeibullDistribution[\[Alpha], \[Beta], ...
The complete collection of Greek letters in Mathematica. You can use Greek letters as the names of symbols. The only Greek letter with a built-in meaning in StandardForm is ...