SOLUTION: In a large population, 68 % of the people have been vaccinated. If 3 people are randomly selected, what is the probability that at least one of them has been vaccinated?
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Question 1169254: In a large population, 68 % of the people have been vaccinated. If 3 people are randomly selected, what is the probability that at least one of them has been vaccinated? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! What is the probability none were vaccinated, and subtract that from 1. Everything else is at least one.
this probability is 0.32^3=0.032768=0.033
the answer is 1-0.033 or 0.967
rough check 1/3 chance not vaccinated and 1/3 cubed is 1/27 so answer should be about 26/27=0.963
