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HCU MCA 2017 Paper

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Question : 12

Total: 75

You are taking a multiple choice test for which you have mastered 70% of the course material. Assume this means that you have a 0.7 chance of knowing the answer to a random test question, and that if you don’t know the answer to a question then you randomly select among the four answer choices. Assume that all choices are uniformly distributed. If there are 50 questions in total, what is your expected score (as a percent) on the exam ?

70
75
77.5
82.5

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