# Type your text here from math import * def donnees(liste): for i in range (5): a=float(input("valeur:")) liste.append(a) x=[] print("saisir les valeurs de x") donnees(x) p=[] print("saisir les probabilités") donnees(p) E,V=0,0 for i in range(5): E+=p[i]*x[i] for i in range (5): V+=p[i]*(x[i]-E)**2 #E = sum(p[i] * x[i] for i in range(len(x))) #V = sum(p[i] * (x[i] - E) ** 2 for i in range(len(x))) T=sqrt(V) print("Esperance",E) print("Variance",V) print("Ecart type",T) #Esperence 0.1499999999999999 #Variance 112.02525 #Ecart type 10.584198127397276