SOLUTION: A student correctly answered 9 out of 12 questions, what is the probability of her answering the next question correctly?

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Question 963619: A student correctly answered 9 out of 12 questions, what is the probability of her answering the next question correctly?
Answer by Alan3354(69443) About Me  (Show Source):
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A student correctly answered 9 out of 12 questions, what is the probability of her answering the next question correctly?
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Not enough info.