[5pt] A test consists of 20 multiple choice problems, each with 5 choices. What is the...
[5pt] A test consists of 20 multiple choice problems, each with 5 choices. What is the probability of a student being correct 14 or more by guessing? Use the normal distribution to approximate the desired probability.?
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[5pt] A test consists of 20 multiple choice problems, each with
5 choices. What is the...
A multiple choice test consists of 10 questions each with four choices (a,b,c,d) for each question....
A multiple choice test consists of 10 questions each with four choices (a,b,c,d) for each question. If a student must get at least 7 correct to pass the test, what is the probability that a student could pass the exam simply by guessing? Find your answer to 4 decimal places.
You are working on a multiple choice test, which consists of 25 problems. each of the...
You are working on a multiple choice test, which consists of 25 problems. each of the problems has 5 answers, only one of which one is correct. If you are totally unprepared and are guessing, what is the probability that your first correct answer is within the first five problems?
An exam consists of 64 independent multiple-choice questions. For each question, there are five choices, with...
An exam consists of 64 independent multiple-choice questions. For each question, there are five choices, with only one being correct. Suppose a student randomly guesses the correct answer to each question. (a) What are the mean and standard deviation of the number of successful guesses? (b) Use the normal approximation to find the probability that the student will correctly guess at most 10 correct answers.
A student answers all 48 questions on a multiple-choice test by guessing. Each question has four...
A student answers all 48 questions on a multiple-choice test by guessing. Each question has four possible answers, only one of which is correct. Approximate the probability that the student gets at least 22 correct answers by using the normal distribution. The probability is:
A multiple-choice examination consists of 75 questions, each having possible choices a, b, c, and d....
A multiple-choice examination consists of 75 questions, each having possible choices a, b, c, and d. Approximate the probability that a student will get more than 18 answers correct if he randomly guesses at each answer. (Note that, if he randomly guesses at each answer, then the probability that he gets any one answer correct is 0.25.) Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not...
4. A multiple-choice exam has 5 questions. Each question has 3 choices, one of which is...
4. A multiple-choice exam has 5 questions. Each question has 3 choices, one of which is the right answer. A student completes the exam by guessing. What is the probability that student gets 4 or more correct answers just by guessing?
12) A student takes a 10-question multiple-choice test by guessing. Each question has 4 choices. Use...
12) A student takes a 10-question multiple-choice test by guessing. Each question has 4 choices. Use the binomial distribution to compute the following probabilities. a. b. c. The student gets at most 2 correct. The student gets exactly 3 correct. The student gets at least 7 correct. 10) Compute the mean, variance, and standard deviation for the probability distribution listed below. 4 P(X) 1/3 1/8 1/8 1/4 1/6
(1 point) A multiple-choice test consists of 20 questions with possible answers of a, b, c,...
(1 point) A multiple-choice test consists of 20 questions with possible answers of a, b, c, d, e, f. Estimate the probability that with random guessing the number of correct answers is at least 8. Use Excel to obtain more accuracy.
A student failed to study for a multiple choice test. The test consists of ten questions...
A student failed to study for a multiple choice test. The test consists of ten questions with five choices for each answer. What is the probability that the student answers all questions incorrectly? What is the probability that the student will achieve at least 50% correct?
12) A student takes a 10-question multiple-choice test by guessing. Each question has 4 choices. Use...
12) A student takes a 10-question multiple-choice test by guessing. Each question has 4 choices. Use the binomial distribution to compute the following probabilities. a. The student gets at most 2 correct. Ye E,,W)b. The student gets exactly 3 correct. The student gets at least 7 correct. a 54167 c. 2.
An exam consists of 64 independent multiple-choice questions. For each question, there are five choices, with only one being correct. Suppose a student randomly guesses the correct answer to each question. (a) What are the mean and standard deviation of the number of successful guesses? (b) Use the normal approximation to find the probability that the student will correctly guess at most 10 correct answers.
A student answers all 48 questions on a multiple-choice test by guessing. Each question has four possible answers, only one of which is correct. Approximate the probability that the student gets at least 22 correct answers by using the normal distribution. The probability is:
A multiple-choice examination consists of 75 questions, each having possible choices a, b, c, and d. Approximate the probability that a student will get more than 18 answers correct if he randomly guesses at each answer. (Note that, if he randomly guesses at each answer, then the probability that he gets any one answer correct is 0.25.) Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not...
4. A multiple-choice exam has 5 questions. Each question has 3 choices, one of which is the right answer. A student completes the exam by guessing. What is the probability that student gets 4 or more correct answers just by guessing?
12) A student takes a 10-question multiple-choice test by guessing. Each question has 4 choices. Use the binomial distribution to compute the following probabilities. a. b. c. The student gets at most 2 correct. The student gets exactly 3 correct. The student gets at least 7 correct. 10) Compute the mean, variance, and standard deviation for the probability distribution listed below. 4 P(X) 1/3 1/8 1/8 1/4 1/6
12) A student takes a 10-question multiple-choice test by guessing. Each question has 4 choices. Use the binomial distribution to compute the following probabilities. a. The student gets at most 2 correct. Ye E,,W)b. The student gets exactly 3 correct. The student gets at least 7 correct. a 54167 c. 2.
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