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3. In a TV show the contestants are given multiple choice questions with 5 possible answers....
10 + Example 3: Multiple choice exam of multiple- choice questions, each with 5 possible answers....
10 + Example 3: Multiple choice exam of multiple- choice questions, each with 5 possible answers. L13, p. 89 Linda has probability 0.75 of knowing the answer to any question. If she does not know the answer she guesses. What is the probability she will give the correct answer? A= Linda knows the answer B=Linda gets the right answer how do you know?? GIVEN: P(A) = 0.75 P(BA) = 0.2 how do you know?? PAC) = 0.25 PCB{A) = 1...
A multiple choice test is given, in which each question has 5 possible answers. As part...
A multiple choice test is given, in which each question has 5 possible answers. As part of an experiment in how students approach test-taking, the probabilities for getting answers correct just by guessing are calculated. If the test has 20 questions, what is the probability of getting 4 questions correct
2. Individual Problems 17-2 You're a contestant on a TV game show. In the final round...
2. Individual Problems 17-2 You're a contestant on a TV game show. In the final round of the game, if contestants answer a question correctly, they will increase their current winnings of $3 million to $5 million. If they are wrong, their prize is decreased to $2,250,000. You believe you have a 25% chance of answering the question correctly. . Given that this is Ignoring your current winnings, your expected payoff from playing the final round of the game show...
A multiple choice test has 26 questions, and each has four possible answers, of which one...
A multiple choice test has 26 questions, and each has four possible answers, of which one is correct(i.e. the probability of guessing correctly is 0.25). If a student guesses on every question, a) find the probability of getting exactly 11 correct. b) Would it be unusual to guess correctly on exactly 11questions? Why?
A student answers a multiple choice examination with questions that have four possible answers each. Suppose...
A student answers a multiple choice examination with questions that have four possible answers each. Suppose that the probability that the student knows the answer to a question is 0.80 and the probability that the student guesses is 0.20. If the student guesses, the probability of guessing the correct answer is 0.25. The questions are independent, that is, knowing the answer on one question is not influenced by the other question. (a) If there is one question on the exam...
Suppose you are taking a multiple choice exam with 75 questions, each with 4 possible answers....
Suppose you are taking a multiple choice exam with 75 questions, each with 4 possible answers. If you were to guess at random for each question, how many questions would you expect to get right? Your answer does not need to be an integer.
(5 points) A multiple-choice examination has 15 questions, each with 5 possible answers only one ...
(5 points) A multiple-choice examination has 15 questions, each with 5 possible answers only one of which is correct. Suppose that one of the students who takes the examination answers each of the questions with an independent random guess. What is the probability that the student answers at least four questions correctly? What is the expected number of questions that the student answers correctly? 4.
(5 points) A multiple-choice examination has 15 questions, each with 5 possible answers only one...
3. You are taking a multiple-choice quiz that consists of 6 questions. Each question has four...
3. You are taking a multiple-choice quiz that consists of 6 questions. Each question has four possible answers, only one of which is correct. To complete the quiz, you randomly guess the answer to each question. a) Find the chance of guessing exactly three answers correctly b) Find the chance of guessing more than four answers correctly
2. Individual Problems 17-2 You're a contestant on a TV game show. In the final round...
2. Individual Problems 17-2 You're a contestant on a TV game show. In the final round of the game, if contestants answer a question correctly, they will increase their current winnings of $3 million to $4 million. If they are wrong, their prize is decreased to $1,500,000. You believe you have a 50% chance of answering the question correctly. Ignoring your current winnings, your expected payoff from playing the final round of the game show is S . Given that...
(1 point) A multiple-choice test consists of 22 questions with possible answers of a, b, c,...
(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
10 + Example 3: Multiple choice exam of multiple- choice questions, each with 5 possible answers. L13, p. 89 Linda has probability 0.75 of knowing the answer to any question. If she does not know the answer she guesses. What is the probability she will give the correct answer? A= Linda knows the answer B=Linda gets the right answer how do you know?? GIVEN: P(A) = 0.75 P(BA) = 0.2 how do you know?? PAC) = 0.25 PCB{A) = 1...
2. Individual Problems 17-2 You're a contestant on a TV game show. In the final round of the game, if contestants answer a question correctly, they will increase their current winnings of $3 million to $5 million. If they are wrong, their prize is decreased to $2,250,000. You believe you have a 25% chance of answering the question correctly. . Given that this is Ignoring your current winnings, your expected payoff from playing the final round of the game show...
(5 points) A multiple-choice examination has 15 questions, each with 5 possible answers only one of which is correct. Suppose that one of the students who takes the examination answers each of the questions with an independent random guess. What is the probability that the student answers at least four questions correctly? What is the expected number of questions that the student answers correctly? 4.
(5 points) A multiple-choice examination has 15 questions, each with 5 possible answers only one...
3. You are taking a multiple-choice quiz that consists of 6 questions. Each question has four possible answers, only one of which is correct. To complete the quiz, you randomly guess the answer to each question. a) Find the chance of guessing exactly three answers correctly b) Find the chance of guessing more than four answers correctly
2. Individual Problems 17-2 You're a contestant on a TV game show. In the final round of the game, if contestants answer a question correctly, they will increase their current winnings of $3 million to $4 million. If they are wrong, their prize is decreased to $1,500,000. You believe you have a 50% chance of answering the question correctly. Ignoring your current winnings, your expected payoff from playing the final round of the game show is S . Given that...
(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
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