8. In a large population, 63% of the people have been vaccinated. If 4 people are randomly selected, what is the probability tha
t AT LEAST ONE of them has been vaccinated?
1 answer:
The probability that none of the four have been vaccinated is
(1-0.63)^4 = 0.01874161
The probability that at least one has been vaccinated is the complement of this,
≈0.9813
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