Question

The frequency distribution of blood groups of a sample of patients was found to be as follows:A 14B 6AB 3O 17The relative frequency of AB in this data is:Group of answer choices7.5%30.033%

Answer 1

we have that

the number of patients is (14+6+3+17)=40

patients AB=3

so

40 -----> 100%

applying proportion

100/40=x/3

x=3*100/40

x=7.5%