200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O.

What is the probability that a randomly chosen student has either blood group A or blood group B?

B) 0.60

C) 0.70

D) 0.81

Question

25 February, 18:39

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Answers (2)

Know the Answer?

Nicholas Mcguire · Answer 1

The answer to your question is C) 0.70

Ricky Rojas · Answer 2

C) 0.70 is the answer

200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O.What is the probability that a randomly chosen student has either blood group A or blood group B?B) 0.60C) 0.70D) 0.81