conditional probabilities

Question

n a large population, 64 % 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 1

64% vaxed. randomly select 3

odds at least one is vaxed = 1 - odds none are vaxed

Pr(0 vaxed) = .36^3 = .046656

1-.046656= .953344

= about 95 1/3% chance at least one has been vaxed if 3 selected