What is the probability that Sue gets a B grade of at least 4 out of 5 on a 5-question multiple choice test (with answers A - D for each question) by guessing at random? What is the sample space? What are the events that satisfy the condition of at least 4 out of 5 correct answers?
What is the probability that Sue gets a B grade of at least 4 out of...
(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 true/false test has 60 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
A true/false test has 30 questions. A passing grade is 70% or more correct answers. Answer_____(Type an integer or a decimal.) a. What is the probability that a person will guess correctly on one true/false question?Answer________ b. What is the probability that a person will guess incorrectly on one question?Answer________ c. Find the approximate probability that a person who is just guessing will pass the test.Answer________ d. If a similar test were given with multiple-choice questions with four choices for...
A multiple-choice test consists of 23 questions with possible answers of a, b, c, d. Estimate the probability that with random guessing, the number of correct answers is at least 10.
A multiple-choice test consists of 21 questions with possible answers of a, b, c, d. Estimate the probability that with random guessing, the number of correct answers is at least 9.
A multiple-choice test consists of 29 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.
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 test consists of 21 questions with possible answers of a, b, c, d, e. Estimate the probability that with random guessing, the number of correct answers is at least 9.
A multiple-choice test consists of 27 questions with possible answers of a, b, c, d, e. Estimate the probability that with random guessing, the number of correct answers is at least 11.
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?