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In a large population, 64% 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?

Respuesta :

kjoshi7

Answer: 1 - %281-0.62%29%5E4 = 1+-+0.38%5E4 = 0.9791.

Step-by-step explanation:

In a large population, 62% 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?

Give your answer as a decimal to 4 places.

~~~~~~~~~~~~~

This probability is the COMPLEMENT to the probability of the event "No one of 4 has been vaccinated",

and THEREFORE is equal to  1 - %281-0.62%29%5E4 = 1+-+0.38%5E4 = 0.9791.

Solved.