bonsoir
proba A = 8/32 = 1/4
proba B = 16/32 = 1/2
proba C = 12/32 = 3/8
proba A ∩ B = la carte est un pique et rouge = ∅
proba B ∩ C = la carte est une figure rouge = 6/32 = 3/16
proba A∪B = P (A) + P (B) - P ( a ∩ B) = 1/4 + 1/2 - Ф = 1/4 + 2/4 = 3 /4
proba AUC = P (A) + P (C) - P(A∩C) = 1/4 + 3/8 - 17/32 = 8/32 + 12/32 - 17/32 = 3/32