In a large population, 54% of the people have been vaccinated. If 4 people are randomly selected, what is the probability that at least one of them has been vaccinated? Round your answer to three decimal places.

We can use the probability mass function and we have this probability:

And replacing we got:

Step-by-step explanation:

Let X the random variable of interest "number of people vaccinated", on this case we now that:

The probability mass function for the Binomial distribution is given as:

Where (nCx) means combinatory and it's given by this formula:

And we want to find this probability:

We can use the probability mass function and we have this probability:

And replacing we got:

51-50

step-by-step explanation:

here is the

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