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In a certain country, the true probability of a baby being a Girl is 0.469.
Among the next Nine randomly selected births in the country, what is the probability
that at least one of them is a boy ?
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The event "at least one of them is a boy" is the complement to the event "no one of them is a boy".
Therefore, the answer to the question is
P = = = 0.9966 (rounded).
Solved.