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Question 16
In a large population, 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?
Write the probabilitiy as a decimal rounded to 4 decimal places.
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Ask by Pollard Gonzalez. in the United States
Mar 31,2025

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The probability that at least one person is vaccinated is 0.9360.

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Beyond the Answer

To find the probability that at least one person has been vaccinated in a group of three, it’s easier to first calculate the probability that none of them are vaccinated and then subtract that from 1.
The probability that a person is not vaccinated is . Therefore, the probability that none of the three people are vaccinated is:
Now, we can find the probability that at least one person is vaccinated:
Thus, the probability that at least one of the three selected people has been vaccinated is when rounded to four decimal places.

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