4) A person is taking a 12-question multiple-choice test for which each question has three answer choices, only one of which is correct. The person decides on answers by rolling a fair die and marking the first answer choice if the die shows 1 or 2, the second if it shows 3 or 4, and the third if it shows 5 or 6. Find the probability that the person gets fewer than 3 correct answers.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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4) A person is taking a 12-question multiple-choice
test for which each question has three answer
choices, only one of which is correct. The person
decides on answers by rolling a fair die and
marking the first answer choice if the die shows 1 or
2, the second if it shows 3 or 4, and the third if it
shows 5 or 6. Find the probability that the person
gets fewer than 3 correct answers.
Transcribed Image Text:4) A person is taking a 12-question multiple-choice test for which each question has three answer choices, only one of which is correct. The person decides on answers by rolling a fair die and marking the first answer choice if the die shows 1 or 2, the second if it shows 3 or 4, and the third if it shows 5 or 6. Find the probability that the person gets fewer than 3 correct answers.
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