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A multiple choice test has 30 questions. Each questions five possible answers, of which one is...
10. A multiple-choice test has 30 questions and each one has five possible answers, of which one is correct. If all answers were guesses, find the probability ofgetting exactly four correct answers. (Points : 3).0604.1325.2552.8000
On a multiple choice test with 11 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the variance for the number of correct answers. Round to the nearest tonth. O A 20.6 OB 2.1 OC. 43 OD 14
A multiple choice test has 25 questions, each with 5 possible choices, exactly one of which is correct. The test is marked by giving four points to each correct choice, and subtracting one point for each incorrect choice. No points are either given or subtracted for questions for which no choice is selected. Mickey, Bianca, and Gerry each know the answer to 12 of the 25 questions, but are unsure about the rest. Mickey leaves the other 13 unanswered, whereas...
A multiple choice test has 10 questions each of which has 4 possible answers, only one of which is correct. If Judy, who forgot to study for the test, guesses on all questions, what is the probability that she will answer exactly 3 questions correctly?
A test consists of 25 multiple choice questions. Each question has 5 possible answers, or which only one is correct. If a student guesses on each question, find the following. a) The probability that he will guess all of them correct b)The probability that he will guess at most 15 correct. c)The probability that he will guess at least one correct. d) The mean and the standard deviation of the number of correct answers. e)Estimate the probability of the number...
On a multiple choice test with 17 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers. 4.3 5.7 25) 8.5 12.8
(1 point) A multiple-choice test consists of 22 questions with possible answers of a, b, c, d. Estimate the probability that with random guessing, the number of correct answers is at least 12. The answer above is NOT correct. (1 point) A multiple-choice test consists of 22 questions with possible answers of a, b, c, d. Estimate the probability that with random guessing, the number of correct answers is at least 12. 0.0029
A multiple-choice test has 20 questions. Each question has 4 possible answers, of which only one is correct. (i) If you randomly answered each question, what is the name of the distribution for the number of possible marks you could achieve for the whole test? Explain your reasons and give the values for the parameters of that distribution.* (ii) If the pass mark for the test is 60% (i.e. 12 marks or more), what is the probability that you will...
a multiple choice quiz consists of 20 questions, each of which has five possible answers of which only one is correct. A student passes the quiz if twelve or more correct answers are obtained. what is the probability of passing the quiz if on each question, a student can eliminate two incorrect answers and then guess between the remaining three? (answer format _._ _ _ _ _ _)
A test consists of 60 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean and the standard deviation of the number of correct answers. Round the answers to the nearest hundredth. ООО A. mean: 12.00; standard deviation: 3.10 B. mean: 30.00; standard deviation: 5:48 c. mean: 12.00; standard deviation: 3.46 D. mean: 30.00; standard deviation: 3.10 Click to select your answer.