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A couple plans to have children until they get a girl, but they agree that they...

A couple plans to have children until they get a girl, but they agree that they will not have more than three children even if all are boys. (Assume boys and girls are equally likely.)

  1. a) Create a probability model for the number of children they might have.

  2. b) Find the expected number of children.

  3. c) Find the expected number of boys they’ll have.

math   Statistics-And-Probability   
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