what is the probability of blood types

Question

34% of people have A+, 37% have O+,6 have A-, 10% B+, 2% B-, 4% AB+, 1% AB-, what is probability of this?

Answer 1

There are 8 blood types, but only 7 are listed. The missing type is O^-, and the missing percentage is about 6%, since the other blood types sum to about 94%. The question doesn't ask for the probability of a particular blood type; so the probability is the given percentage. The probability of someone in the relevant population (the source of the given blood types) having O^- blood type is 6%; the probability of someone having any one of the listed types is 94%.