/go. php? totalquestions=5& testid=1287& strand=6315& element=530368.condition=beginner questionyour classroom partnerhome geometry eoc (gse) practice5 beginner questions1 2 3 4 5200 elementary school students were surveyed to find their blood groups. of those, 55 were of blood group a, 85 of blood groupb, and 21 of blood group o. eswhat is the probability that a randomly chosen student has either blood group a or blood group b? a)0.250.60eliminate0.70d)0.810.81su bmitstatistics and probability