Question 1174104
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 Hi,

In a large population, 62% of the people have been vaccinated.
If <u>4 people</u> are randomly selected:
 
what is the probability that at least one of them has been vaccinated?

  P(x ≥ 1) = 1 - P(x ≤ 0) = 1 - binomcdf(4, .62, 0) 

  P(x ≥ 1) = 1 - binomcdf(4, .62, 0)  = 1 - .0209 = .9791 (decimal to 4 places)
             

Wish You the Best in your Studies.
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