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svaint.py

Created by egenspergersara

Created on May 15, 2025

806 Bytes

SOMME DE VA

pas loi binomiale : 
E(X) = pi x xi
V(X) = pi(xi - (E(x))^2
o(X) = sqrt(v(X))

L'expérience se répète ...fois de
manière indépend et identique, 
et elle comporte deux issus c'est
un sch de Bernouilli. X est la VA
qui compte le nbre de fois où...
X suit la loi binomiale de para...

*INTEGRALE 
 a            b   
S f(x)dx = - S f(x)dx 
 b            a
 
Valeur moyenne :
            b
m = 1/(b-a)S f(x)dx
            a
m est la hauteur du rectangle de
longueur b-a et ayavnt la même 
aire que le domaine sous la courbe

Si f est négative :
             b
aire(D) = - S f(x)dx 
             a
             
Calcul d'aire entre deux courbes : 
si f(x)>= g(x)
          b
Aire(D)= S f(x)-g(x)dx
          a
IPP :
a            a   a
Su'v'dx = [uv] - Suv'dx
b           b   b

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