a) Q = { 1, 2, 3, 4, 5, 6 }
b) WA = { 1, 3, 5 } , P ( A ) = | WA | / | Q | = 3 / 6 = 0,5 = 50 %
c) WB = { 5, 6 } , P ( B ) = | WB | / | Q | = 2 / 6 = 1 / 3 = 0,333... = 33,333... %
d) WC = WA ∩ WB = { 5 } , P ( C ) = | WC | / | Q | = 1 / 6 = 0,1666... = 16,666... %