Sagot :
bonjour
a = 1
proba 1 = 1 /10
proba 2 = 2 /10 = 1 /5
proba 3 = 3 /10
proba 4 = 4 /10 = 2 /5
A = 5 /10 = 1 /5
B = ( 1 + 2 + 4 ) / 10 = 7 /10
bonjour
a = 1
proba 1 = 1 /10
proba 2 = 2 /10 = 1 /5
proba 3 = 3 /10
proba 4 = 4 /10 = 2 /5
A = 5 /10 = 1 /5
B = ( 1 + 2 + 4 ) / 10 = 7 /10