Question

In a certain country, the true probability of a baby being a boy is 0.523. Among the next seven randomly selected births in the country, what is the probability that at least one of them is a girl?

Answer 1

Probably that among the next seven randomly selected births in the​ country baby being a boy is $0.523^7=0.0107$

In another way will born at least 1 girl, it means among the next seven randomly selected births in the​ country probability that at least one of them is a girl equals

$1-0.523^7=0.9893$