SOLUTION: if you make guesses for four multiple-choice test questions (each with five possible answers), what is the probability of getting at least one correct? If a very lenient instructo

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Question 320901: if you make guesses for four multiple-choice test questions (each with five possible answers), what is the probability of getting at least one correct? If a very lenient instructor says that passing the test occurs if there is at least one correct answer can you reasonably expect to pass by guessing
Answer by toidayma(44) About Me  (Show Source):
You can put this solution on YOUR website!
The probability of getting at least one correct guess = 1 - the probability of getting no guess correct.
The probability of getting one guess incorrect is : 4/5
The probability of getting for guesses incorrect is (4/5)^4
Therefore, the probability of passing the test is 1 - (4/5)^4. :-)