Stuck, help?

sarahlynn

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Oct 15, 2012
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You are writing a multiple choice test with 5 questions, each question having 5 possible choices. What is the probability that a person would guess answer A for each question. Show your work.
 
You are writing a multiple choice test with 5 questions, each question having 5 possible choices. What is the probability that a person would guess answer A for each question. Show your work.
Well, isn't the point of the problem for you to show your work? Is this exactly how the problem was stated? If by "guessing" you mean the person chooses one of the five answers at random, then the probability that the person will choose "A" on any problem is 1/5. The probability the person will choose that for all 5 questions is \(\displaystyle (1/5)^5\).
 
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