This data set comes from Section 52.4.

Blood types of 50 males and 50 females

Sex,Blood Type,Rhesus,Count
Male,Unknown,Unknown,27
Male,A,Positive,6
Male,A,Negative,0
Male,B,Positive,2
Male,B,Negative,4
Male,AB,Positive,0
Male,AB,Negative,2
Male,O,Positive,5
Male,O,Negative,4
Female,Unknown,Unknown,24
Female,A,Positive,9
Female,A,Negative,2
Female,B,Positive,2
Female,B,Negative,1
Female,AB,Positive,2
Female,AB,Negative,0
Female,O,Positive,8
Female,O,Negative,2