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Suppose that a student who is about to take a multiple choice test has only learned 40% of the material covered by the exam.Thus, there is a 40% chance that shewill know the answer to a question. However, even if she does not know the answer to a question, she still has a 20% chance of getting the right answer by guessing. If we choose a question at random from the exam, what is the probability that she will get it right?

Microeconomics, Economics

  • Category:- Microeconomics
  • Reference No.:- M91748781

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