Question
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A multiple choice exam consists of 12 questions, each having 5 possible answers. To pass, you...
A multiple choice exam consists of 12 questions, each having 5 possible answers. To pass, you must answer at least 8 out of 12 questions correctly. What is the chance of this, if ;
a. You go into the exam without knowing a thing, and have to resort to Pure guessing?
b. You have studied enough so that on each question, 3 choices can be eliminated. But then you have to make a pure guess between the remaining 2 choices.
c. You have studied enough so that you know for sure the correct answer on 2 questions. For the remaining 10 questions you have to resort to pure guessing.
Solutions
milcah answered 1 year agoRelated Solutions
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______________________________________________________________
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EXERCISES ON DISCRETE DISTRIBUTIONS 6. An exam consists of 12 questions that present four possible answers...
EXERCISES ON DISCRETE DISTRIBUTIONS
6. An exam consists of 12 questions that present four possible
answers each. A person, without knowledge about the subject of the
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b. Find the probability that such person does not answer any
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e. Obtain...
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answers of a, b, c, d, e, f. Estimate the probability that with
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