The chance of getting a child with type B is 18.75%. Besides, AB blood group constitutes 56.25%. The type O chance is 6.05%. Therefore, the mother and the father has the highest chance of getting a child with type AB blood because type A and B alleles are dominant over others (Benowitz, Hukkanen, & Jacob 2009). How do they get 56.25% chance of AB blood, for example?"