A medical researcher administers an experimental medical treatment to 200 patients. The patients in the study are categorized by blood types A, B, AB, and O. The researcher observed that the treatment had a favorable outcome for 24 of the 80 patients with blood type A, 11 of the 22 patients with blood type B, 8 of the 8 patients with blood type AB, and none of the 90 patients with blood type O.
(a) What percentage of patients with blood type A had a favorable outcome?
a) 30%
b) 20%
c) 25%
d) 15%
(b) What percentage of patients with blood type B had a favorable outcome?
a) 40%
b) 50%
c) 30%
d) 20%
(c) What percentage of patients with blood type AB had a favorable outcome?
a) 80%
b) 50%
c) 60%
d) 40%
(d) What percentage of patients with blood type O had a favorable outcome?
a) 10%
b) 5%
c) 0%
d) 15%
