SOLUTION: Erica does not know the answers to 3 multiple choice questions on a test. Each question has 3 answer choices. Erica randomly guesses the answers to all 3 questions. What is the
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Question 1032902: Erica does not know the answers to 3 multiple choice questions on a test. Each question has 3 answer choices. Erica randomly guesses the answers to all 3 questions. What is the probability that she will answer only the second question correctly? Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! For the first question there are two possible incorrect choices.
For the 2nd question there is only one possible correct choice, while the 3rd question has two possible incorrect choices. All in all there are ways of answering the three questions.
Hence the probability is that she will answer only the second question correctly.
