One day, eleven babies are born at a hospital. assuming each baby has an equal chance of being a boy or girl, what is the probability that at most nine of the eleven babies are girls?

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probabilityof having, at most, 9 girls, is 0.9515How to get the probability?probabilitythat a random baby is a girl is:probabilitythat a random baby is a boy is:probabilitythat 10 of the babies are girls and p(11) is theprobabilitythat the 11 babies are girls.combinationsof 10 elements that we can make with a set of 11 elements, such that:probabilityis:probabilityof having, at most, 9 girls, is 0.9515probability: