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A family of five daughters only is expec...

A family of five daughters only is expecting sixth issue. The chance of its beings a son is

A

Zero

B

`25%`

C

`50%`

D

`100%`

Text Solution

AI Generated Solution

The correct Answer is:
To determine the chance of the sixth child being a son in a family that already has five daughters, we can follow these steps: ### Step-by-Step Solution 1. **Understanding Sex Determination**: In humans, sex is determined by the combination of sex chromosomes inherited from the parents. Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). 2. **Chromosomal Contribution**: The mother contributes an X chromosome to the offspring regardless of the child's sex. The father contributes either an X or a Y chromosome. If the father contributes an X, the child will be female (XX); if he contributes a Y, the child will be male (XY). 3. **Probability of Each Sex**: Each time a child is conceived, the probability of being male (XY) or female (XX) is independent of previous births. The chance of having a son is 50%, and the chance of having a daughter is also 50%. 4. **Conclusion**: Since the sex of each child is independent of the previous children, the chance of the sixth child being a son remains 50%, regardless of the fact that the previous five children were all daughters. ### Final Answer The chance of the sixth child being a son is **50%**. ---
To determine the chance of the sixth child being a son in a family that already has five daughters, we can follow these steps: ### Step-by-Step Solution 1. **Understanding Sex Determination**: In humans, sex is determined by the combination of sex chromosomes inherited from the parents. Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). 2. **Chromosomal Contribution**: The mother contributes an X chromosome to the offspring regardless of the child's sex. The father contributes either an X or a Y chromosome. If the father contributes an X, the child will be female (XX); if he contributes a Y, the child will be male (XY). ...
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