**TI82** TxtView file generated by CalcText - Kouriâ ÓProbaÓÑÿDem A B B/ indSoit A et B ind Dem que A et B/ st ind P(A) = P(AIB)+P(AIB/) Formule des proba total P(AIB/) = P(A)-P(AIB) = P(A)xP(B) car A et B st ind = P(A)(1-P(B)) = P(A)xP(B/) Dc A et B/ st ind ÿ6;