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- 2011-7-2
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- 2015-12-27
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Hi everyone,
I was thinking about the statistics involved in passing the CFA exam when I had a thought.
Here’s a hypothetical situation:
There’s an exam with 100 questions, A-B-C with only one correct answere to each question. Suppose, a student is sure of 40 of the questions he answeres, and decides to guesse the remaining 60. Statistically speaking, he will corretly answere a third of the questions he guesses (due to being only 3-choice exam). So, am I correct in thinking, that he will score (in perfect theory) 40 + 1/3*60 = 40 + 20 = 60 questions, scoring 60% on the exam? |
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发表于 2013-5-7 03:22
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