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

Pasha

30 December, 18:05

+3

Answers (2)

Know the Answer?

Paxton Murphy · Answer 1

Paxton Murphy 30 December, 18:27

0

C) 0.70 is the answer

Gretchen Morrison · Answer 2

The answer to your question is C) 0.70

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