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Sally has two children. One is a son named Mag. What are the chances Mag has a brother?

Susie also has two children. You randomly meet one in the supermarket, and his name is Tom. What are the chances Tom has a brother?

Answer :

Final answer:

For Sally, the chances Mag has a brother are 100% if she has another boy. For Susie, the chances Tom has a brother are 50% since she could have either one boy and one girl or two boys.

Explanation:

In the given scenario, Sally has two children and one of them is a son named Mag. The question asks about the chances that Mag has a brother. Since Mag is a son, the only possibility for a brother is if Sally has another son. Therefore, the chances Mag has a brother would be 100% if Sally has another child who is a boy.

Similarly, Susie also has two children. Meeting one of her children, Tom, at the supermarket does not provide any information about the gender of the other child. Therefore, the chances that Tom has a brother would be 50% since Susie could have either one boy and one girl or two boys.

Learn more about Probability here:

https://brainly.com/question/32117953

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