dexo14jgbs.py

Created by clovis0369

Created on May 17, 2021

650 Bytes

def():
On note E={x1; x2;... ; xn} l’ensemble des issues d’une expérience aléatoire. 
On le note parfois Ω et on dit que c’est l’univers associé à l’expérience aléatoire.
Un évènement élémentaire ne comporte qu’une seule issue.
0 ≤ pi ≤ 1 et p1 + p2 + ⋯ + pn = 1

L’intersection de A et B est l’évènement, noté A ∩ B formé des issues qui réalisent à la fois l’évènement A et l’évènement B.

La réunion de A et B est l’évènement, noté A ∪ B, formé des issues qui réalisent l’évènement A ou  l’évènement B, c’est-à-dire au moins l’un des deux.

p(A ∪ B) = p(A) + p(B) − p(A ∩ B)

xk = xa +xb/2 = millieu

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