urn model - ορισμός. Τι είναι το urn model
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Τι (ποιος) είναι urn model - ορισμός

CERTAIN MODEL STUDIED IN PROBABILITY THEORY AND COMBINATORICS
Urn model; Bernouilli's urn
  • Two urns containing white and red balls.

Urn problem         
In probability and statistics, an urn problem is an idealized mental exercise in which some objects of real interest (such as atoms, people, cars, etc.) are represented as colored balls in an urn or other container.
Pólya urn model         
Polya's urn; Polya urn; Polya urn scheme; Pólya's urn; Pólya urn; Hoppe urn; Polya urn model
In statistics, a Pólya urn model (also known as a Pólya urn scheme or simply as Pólya's urn), named after George Pólya, is a type of statistical model used as an idealized mental exercise framework, unifying many treatments.
funeral urn         
  • upright
  • Ancient Greek cremation urn ca. 850 B.C.
VASE, OFTEN WITH A COVER, WITH A TYPICALLY NARROWED NECK ABOVE A ROUNDED BODY AND A FOOTED PEDESTAL
Urns; Funerary urn; Cinerary urn; Figural urn; ⚱; Cremation urn; Burial urn; Tea urn; Biodegradable urn; Bios Urns; Funeral urn; Burial urns; Sepulchral urn; Urn grave; Urn tomb; ⚱️
¦ noun an urn holding the ashes of a cremated body.

Βικιπαίδεια

Urn problem

In probability and statistics, an urn problem is an idealized mental exercise in which some objects of real interest (such as atoms, people, cars, etc.) are represented as colored balls in an urn or other container. One pretends to remove one or more balls from the urn; the goal is to determine the probability of drawing one color or another, or some other properties. A number of important variations are described below.

An urn model is either a set of probabilities that describe events within an urn problem, or it is a probability distribution, or a family of such distributions, of random variables associated with urn problems.