proba.py

Created on March 31, 2022

329 Bytes

P(B) sachant A = P(A inter B)/P(A)

P(A) sachant B = P(A inter B)/P(B


indépendantes : 
  
P(B)sachant A = 

P(A inter B)/P(A)
P(A)*P(B)/P(A)
P(B)


proba de a sachant b

Pb(A)= P(A inter B)/P(B)
donc
P(A inter B)= P(B) * Pb(A)

P(J)= P(J inter R) + P(J inter Rbarre)
comme
P(B)= P(B inter A1) + P(B inter A2...)