Suppose a quiz has 12 multiple choice questions. Each question has 4 answer choices. If a...
Suppose a quiz has 12 multiple choice questions. Each question has 4 answer choices. If a student takes the quiz and randomly guesses on every question.... Find the probability the student gets between 1 and 6, exclusive, questions correct? Find the probability the student gets more than 8 questions correct?
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Suppose a quiz has 12 multiple choice questions. Each question
has 4 answer choices. If a...
4. A student is taking a multiple-choice quiz where each question has four choices. The student...
4. A student is taking a multiple-choice quiz where each question has four choices. The student randomly guesses the answers to the five-question quiz. What is the probability that the student gets all of the questions correct? (TEKS G.13.E) 1 (В A 256 1024 - D 5 16
Mary's Final Exam for Psychology has 10 True/False questions and 10 multiple choice questions with 4 choices for each answer. Assuming Mary randomly guesses on every question: **Write answers usi...
Mary's Final Exam for Psychology has 10 True/False questions and 10 multiple choice questions with 4 choices for each answer. Assuming Mary randomly guesses on every question: **Write answers using 3 decimal places* a.) What's the probability that she gets at least 8 of the 10 true/false questions correct? b.) What's the probability that she gets at least 6 of the 10 multiple choice questions correct? c.) If the multiple choice questions had 5 choices for answers instead of 4,...
A student takes an exam containing 12 multiple choice questions. Each question has 5 choices. At...
A student takes an exam containing 12 multiple choice questions. Each question has 5 choices. At least 8 correct answers are required to pass. If the student guesses, what is the probability that he will pass? Round your answer to four decimal places.
A student takes a multiple choice test that has 8 questions. Each question has five choices....
A student takes a multiple choice test that has 8 questions. Each question has five choices. The student guesses randomly at each answer. Let X be the number of questions answered correctly. a) P(3) = ? b) P(More than 2) =
A student takes a multiple choice test consisting of 5 questions where there are 4 choices...
A student takes a multiple choice test consisting of 5 questions where there are 4 choices per question. Also, each question is worth 20 points. Suppose the student guesses on each question. Let X be the number of questions the student gets correct. The probability distribution for X is given below. Find the probability that the student gets at least a 60 on the test. Give your answer to four decimal places.
A multiple choice quiz has4 questions. Each question has 5 possible answers, only one of which...
A multiple choice quiz has4 questions. Each question has 5 possible answers, only one of which is correct. A student has not studied for the quiz and guesses randomly on each question. What is the probability that the student gets at least one correct answer? Show your calculation, and write your answer as either a reduced fraction or a decimal rounded to four places.
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.
Take a guess: A student takes a multiple-choice test that has 12 questions. Each question has...
Take a guess: A student takes a multiple-choice test that has 12 questions. Each question has five choices. The student guesses randomly at each answer. Let X be the number of questions answered correctly. (a) Find P(5
A student takes an exam containing 10 multiple choice questions. Each question has 5 choices. If...
A student takes an exam containing 10 multiple choice questions. Each question has 5 choices. If the student guesses, what is the probability that he will get less than 7 but more than 5 questions right? Round your answer to four decimal places.
a quiz consists of 20 multiple-choice questions. each with 4 choices but only 1 answer, while...
a quiz consists of 20 multiple-choice questions. each with 4 choices but only 1 answer, while a student decided to randomly guess all the answers in the quiz. 1. find the probability for passing the quiz when the passing grade is 60% 2. find the probability to get the first correct answer within the first 3 attempts 3. find the expected number of attempts to get the first correct answer
4. A student is taking a multiple-choice quiz where each question has four choices. The student randomly guesses the answers to the five-question quiz. What is the probability that the student gets all of the questions correct? (TEKS G.13.E) 1 (В A 256 1024 - D 5 16
Mary's Final Exam for Psychology has 10 True/False questions and 10 multiple choice questions with 4 choices for each answer. Assuming Mary randomly guesses on every question: **Write answers using 3 decimal places* a.) What's the probability that she gets at least 8 of the 10 true/false questions correct? b.) What's the probability that she gets at least 6 of the 10 multiple choice questions correct? c.) If the multiple choice questions had 5 choices for answers instead of 4,...
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.
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