4) A person is taking a 12-question multiple-choicetest for which each question has three answerchoices, only one of which is correct. The persondecides on answers by rolling a fair die andmarking the first answer choice if the die shows 1 or2, the second if it shows 3 or 4, and the third if itshows 5 or 6. Find the probability that the persongets fewer than 3 correct answers.

Answered: Image /qna-images/answer/0f3b3fd5-5884-4522-86a8-7bb4e17d48e1.jpg

Answered: 4) A person is taking a 12-question…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A multiple choice test contains five questions, and each question has three possible answers. A passing grade is three or more correct answers. What is the probability of passing if you guess the answers at random?

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