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Topic: Multiple multiple choice. (Read 544 times) |
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towr
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Multiple multiple choice.
« on: May 15th, 2007, 2:09am » |
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Suppose you have a multiple choice exam with 10 questions, each 4 options.
If you guess randomly, how often would you expect to have to redo the exam (different questions each time) before you pass? Let's say 70% or over is a passing grade (that should leave 60% after correction for chance, if I'm not mistaken).
Generalize at will 
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| « Last Edit: May 15th, 2007, 2:09am by towr » |
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Grimbal
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Re: Multiple multiple choice.
« Reply #1 on: May 15th, 2007, 7:40am » |
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If you do the exam every day Monday to Friday, and rest on week-ends, expect 400 days to pass.
I think it is easier to actually study the subject.
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