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A company is hosting a dinner for working mothers who have at least one son. Ms. Jackson, a mother with two children, has been invited to the event. What are the chances that both of her children are boys?
To get an in-depth understanding, think about this question as well: a new colleague, Ms. Parker, has two children. If you happen to see her walking with one of her children, and the child happens to be a boy, what can you say about the chance of both of her children being boys!