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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...
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
A 20 question multiple choice test with 5 possible answers on each question is given to...
A 20 question multiple choice test with 5 possible answers on each question is given to a class and the instructor has promised that any student who gets more than half of the questions correct will pass the test. A student who has not attended the class nor read any of the assignments is hoping to pass the test purely on the basis of guesswork. What is the probability that the student will pass? (Hint: The probability that a guess...
1. On a multiple choice exam with 4 possible answers for each of 7 questions, what...
1. On a multiple choice exam with 4 possible answers for each of 7 questions, what the probability that a student will get 6 or more correct just by guessing randomly? (Hint: the student has an independent 1/4 chance of answering each individual question successfully.)
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
1. On a multiple choice exam with 4 possible answers for each of 7 questions, what the probability that a student will get 6 or more correct just by guessing randomly? (Hint: the student has an independent 1/4 chance of answering each individual question successfully.)
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