A test has 5 multiple choice questions with four choices with one correct answer each
QUESTION 11
A test has 5 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 5 questions, what is the probability that you get at least 1 questions
correct?
The probability a certain virus infects a random person is 0.2. If a random sample of 12 people is taken, what is the probability that exactly 5 people are infected?
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A test has 5 multiple choice questions with four choices with one correct answer each
A multiple choice test has 25 questions, each with 5 possible choices, exactly one of which...
A multiple choice test has 25 questions, each with 5 possible choices, exactly one of which is correct. The test is marked by giving four points to each correct choice, and subtracting one point for each incorrect choice. No points are either given or subtracted for questions for which no choice is selected. Mickey, Bianca, and Gerry each know the answer to 12 of the 25 questions, but are unsure about the rest. Mickey leaves the other 13 unanswered, whereas...
suppose that carlos is taking a multiple-choice test where there are five answer choices for each...
suppose that carlos is taking a multiple-choice test where there are five answer choices for each question, and he randomly guesses on four questions. (a) What is the probability that he gets exactly three of those questions correct? (b) what is the probability that he gets at least one out of the four questions correct? (c) What is the probability that he gets none of the four questions correct?
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?
Assume that random guesses are made 3 multiple choice questions on a test with 5 choices...
Assume that random guesses are made 3 multiple choice questions on a test with 5 choices for each question, so that there are n=3 trials, each with probability of success (correct) given by p = 0.20. Find the probability of no correct answers. The probability of no correct answer is __? round to 3 decimals as needed Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes. If 9 adult smartphone user are randomly...
2. Suppose you take a multiple choice test with 10 questions, and each question has 5...
2. Suppose you take a multiple choice test with 10 questions, and each question has 5 answer choices (a. (10 points) b, c.d, e). What is the probability you get exactly 4 questions correct just by guessing? on)
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.
Sam takes a multiple choice test with two questions and four possible answers to each (A,...
Sam takes a multiple choice test with two questions and four possible answers to each (A, B, C, D), of which only one is correct. He didn’t study so doesn’t know the material at all. As a result, he randomly chooses his answer to each question.: a. Thinking of his two choices as the random outcomes of interest, what is the sample space? (2 marks) b. What is the probability that he will get at least one question correct? (2...
HW4.5. Multiple-choice Test A multiple-choice test has 43 questions. Each question has 4 choices. If you...
HW4.5. Multiple-choice Test A multiple-choice test has 43 questions. Each question has 4 choices. If you guess at random on all the questions and each guess is independent from one another, what are the expected value and standard deviation of the number of correct answers on your test? 1. What is the expected value of the number of correct answers on your test? (a) 10.75 (b) 21.5 (c) 8.75 (d) 11.75 2. What is standard deviation of the number of...
On a test there are 25 multiple-choice questions. On each question there are four answer choices,...
On a test there are 25 multiple-choice questions. On each question there are four answer choices, but only one is correct. Olivia guesses on each question. Find the probability that she answers between 7 and 10 (inclusive) questions correctly (round up to second decimal place).
(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...
A multiple choice test has 25 questions, each with 5 possible choices, exactly one of which is correct. The test is marked by giving four points to each correct choice, and subtracting one point for each incorrect choice. No points are either given or subtracted for questions for which no choice is selected. Mickey, Bianca, and Gerry each know the answer to 12 of the 25 questions, but are unsure about the rest. Mickey leaves the other 13 unanswered, whereas...
2. Suppose you take a multiple choice test with 10 questions, and each question has 5 answer choices (a. (10 points) b, c.d, e). What is the probability you get exactly 4 questions correct just by guessing? on)
HW4.5. Multiple-choice Test A multiple-choice test has 43 questions. Each question has 4 choices. If you guess at random on all the questions and each guess is independent from one another, what are the expected value and standard deviation of the number of correct answers on your test? 1. What is the expected value of the number of correct answers on your test? (a) 10.75 (b) 21.5 (c) 8.75 (d) 11.75 2. What is standard deviation of the number of...
(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...
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