"Secretors" (genotypes SS and Ss) secrete their A and B blood group antigens into their saliva and other body fluids, while "nonsecretors" (ss) do not. A female of blood type A and genotype IAi Ss has a child with a man with blood type 0 and genotype ii Ss. What is the probability the child will have a blood type that tests as the O blood type, if typing was done using saliva