If a couple has three boys, the probability of fourth child being a girl is -
Question
If a couple has three boys, the probability of fourth child being a girl is -
Solution
The probability of having a boy or a girl is always 50%, regardless of the gender of the previous children. This is because the gender of a baby is determined by whether the sperm carrying an X or Y chromosome fertilizes the egg. Each sperm has an equal chance of carrying either an X or Y chromosome. Therefore, the probability of the fourth child being a girl is 50%.
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