bonjour
a) issues = (A ; T , S , W)
b ) il y a 2 / 8 chances d'obtenir A
2 /8 = 1 /4
c ) obtenir T = 2 / 8 = 1 /4
obtenir S = 2 /8 = 1/4
obtenir W = 2/8 = 1 /4
a) issues = ( A ; B, C, D )
obtenir A = 4 / 8 = 1 /2 = 0.5
obtenir B = 2 /8 = 1 /4 = 0.25
obtenir C = 1 /8 = 0.125
obtenir D = 1 /8 = 0.125
0.5 + 0.25+ 0.125 + 0.125 = 1
