A family has 9 daughters. What is the probabi | vedclass

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(A) The sex of a child is determined by the sperm cell that fertilizes the egg. Each pregnancy is an independent event. In humans,the male produces tw

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$50$

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(A) The sex of a child is determined by the sperm cell that fertilizes the egg. Each pregnancy is an independent event. In humans,the male produces two types of sperm: $50\%$ carrying the $X$ chromosome and $50\%$ carrying the $Y$ chromosome. Therefore,for every pregnancy,the probability of having a boy or a girl remains $1/2$ or $50\%$,regardless of the gender of the previous children. Thus,the probability of having a son at the $10$th birth is $50\%$.

$A$ family has $9$ daughters. What is the probability of having a son at the $10$th birth (in $\%$)?

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