8. In a large population, 63% of the people have been vaccinated. If 4 people are randomly selected, what is the probability tha

Question

lorasvet [3.4K]

3 years ago

14

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?

Mathematics

1 answer:

Ludmilka [50] · Answer 1 · 2022-06-06T23:07:34+03:00

Ludmilka [50]3 years ago

3 0

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