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单词 OddsRatio
释义

odds ratio


Suppose the probability of an event A is not 1. The odds of the event A is the ratio

odds(A):=P(A)P(Ac)=P(A)1-P(A).

For example, if the odds of landing a head in a coin flip is 2, then the probability of landing a head is twiceas likely as that of landing a tail.

In a 2×2 contingency tableMathworldPlanetmath, with a dichotomous explanatory variable X having levels 1 and 2, and a binary response variable Y with success and failure as two possible levels of outcomes:

Titleodds ratio
Canonical nameOddsRatio
Date of creation2013-03-22 14:41:07
Last modified on2013-03-22 14:41:07
OwnerCWoo (3771)
Last modified byCWoo (3771)
Numerical id10
AuthorCWoo (3771)
Entry typeDefinition
Classificationmsc 62H20
Classificationmsc 62H17
Definesodds
Defineslog-odds ratio
\\@unrecurse
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