Téori probabilitas: Béda antarrépisi
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The probability that an event <math>E</math> occurs ''given'' the known occurrence of an event <math>F</math> is the '''[[conditional probability]]''' of <math>E</math> '''given''' <math>F</math>; its numerical value is <math>P(E \cap F)/P(F)</math> (as long as <math>P(F)</math> is nonzero). If the conditional probability of <math>E</math> given <math>F</math> is the same as the ("unconditional") probability of <math>E</math>, then <math>E</math> and <math>F</math> are said to be [[statistical independence|independent]] events. That this relation between <math>E</math> and <math>F</math> is symmetric may be seen more readily by realizing that it is the same as saying |
The probability that an event <math>E</math> occurs ''given'' the known occurrence of an event <math>F</math> is the '''[[conditional probability]]''' of <math>E</math> '''given''' <math>F</math>; its numerical value is <math>P(E \cap F)/P(F)</math> (as long as <math>P(F)</math> is nonzero). If the conditional probability of <math>E</math> given <math>F</math> is the same as the ("unconditional") probability of <math>E</math>, then <math>E</math> and <math>F</math> are said to be [[statistical independence|independent]] events. That this relation between <math>E</math> and <math>F</math> is symmetric may be seen more readily by realizing that it is the same as saying |
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<math>P(E \cap F) = P(E)P(F)</math>. |
<math>P(E \cap F) = P(E)P(F)</math>. turkey |
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Two crucial concepts in the theory of probability are those of a [[variabel acak]] and of the [[probability distribution]] of a random variable; see those articles for more information. |
Two crucial concepts in the theory of probability are those of a [[variabel acak]] and of the [[probability distribution]] of a random variable; see those articles for more information. |
Révisi nurutkeun 11 Désémber 2012 22.47
Téori probabilitas ngarupakeun élmu matematik ngeunaan probabilitas atawa kamungkinan.
Matematikawan mikirkeun yen probabiliti salaku angka dina interval tina 0 ka 1 keur nangtukeun "kajadian" numana bener-bener kajadian atawa henteu kajadian dina bentuk acak. Probabilitas nangtukeun kajdian dumasa kana aksioma probabilitas.
Artikel ieu mangrupa taratas, perlu disampurnakeun. Upami sadérék uninga langkung paos perkawis ieu, dihaturan kanggo ngalengkepan. |