Question: The probability that any child in a certain family will have blue eyes is 1/4, and this feature is inherited independently by different children in

The probability that any child in a certain family will have blue eyes is 1/4, and this feature is inherited independently by different children in the family. If there are five children in the family and it is known that at least one of these children has blue eyes, what is the probability that at least three of the children have blue eyes?

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