What are the odds of getting a passing grade by sheer guessing here? (lemmy.world)

submitted 10 months ago* (last edited 10 months ago) by FatTony@lemmy.world to c/asklemmy@lemmy.world

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Hi,

I just did a test which had two multiple choice questions. Each question was worth one point. Getting them both right would result in getting a 100% score. Suffice it to say, getting just one question right would give you 50% and with that a passing grade.

So you have two multiple choice questions. Both of which are unrelated to the other. Each question has four possible answers. When you finish the test. You get to have one more try. The questions and possible answers remain the same.

Let's say you use both tries and you remember your previous two respected answers. What would your odds be, if you were to brute force guess your way through this test, to get a passing grade or a 100%?

Edit: Both questions only have one correct answer.

IMPORTANT EDIT: YOU DO NOT KNOW WHICH ANSWER YOU HAD RIGHT OR WRONG THE SECOND TIME AROUND. You only know how many questions you got right. But you don't know which. Sorry for the confusion!

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[-] Kolanaki@yiffit.net 11 points 10 months ago* (last edited 10 months ago)

During standardized testing, because I hated math, I always just bubbled in my answers at random on the Scantron and still got average marks for it like half the time.

Later in high school I also learned that in a multiple choice questionnaire, C is the most commonly correct answer so if you just answer C on everything your odds of getting a passing grade are pretty high. Legit were told to just answer C when we didn't know in a class preparing us for an academic decathlon.

this post was submitted on 21 Dec 2023

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