In a certain town, the percentage of people with blood type A is approximately the same to that with blood type O. Moreover, the percentage of inhabitants with blood type B is about 1∕5 compared to that of type A and three times as much compared to the percentage of persons with type AB. Estimate the probability that the next child to be born in this town

(i) will have a blood type AB;

(ii) will have a blood type either A or B;

(iii) will not have blood type O.