Due to presence of HOMEWORKLIB POLICY, I am answering first question.
17.
Ans: A. 0.25
Explanation: Since there are 4 choices and exactly one of them is correct, probability of one question being correct is (1/4) or 0.25.
If you are satisfied with the answer, please provide a positive rating. Feel free to comment in case of queries.
Have a nice day ahead!
Discrete Binomial Distributions: Assume that you are taking a multiple choice test that you have not...
just answer nuber 18 please Discrete Binomial Distributions: Assume that you are taking a multiple choice test that you have not studied for! The test only has 9 questions and each question has four possible answers. You plan to randomly guess on all 9 questions and the probability you get one correct is the same for all questions. 17. What is the probability you get the first question correct? A. 0.25 B. 0.50 C. 0.75 D. 1.00 18. Using the...
What kind of distributions are the binomial and Poisson probability distributions? A. Discrete B. Continuous C. Both discrete and continuous D. Neither discrete or continuous
O RANDOM VARIABLES AND DISTRIBUTIONS Binomial problems: Advanced A multiple-choice test consists of 8 questions. Each question has answer choices of a, b, c, d, and e, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that she gets fewer than 3 of them correct? Carry your intermediate computations to at least four decimal places, and round your answer to two decimal nlaces (If necessary, consult a list of...
When taking multiple choice test with 4 options for answers, there is a 25% chance that you will get the question right just by random guess. You wish to determine how many correct answers you can get just by random guessing on a 100 question multiple choice test. np>10np>10, At least 10 expected successes. n(1−p)>10n(1−p)>10, At least 10 expected failures. Approximate with N(np,np(1−p)) Binomial Distribution None of the above. Normal Population Distribution Uniform Distribution
Suppose you forget to study for an exam. The exam is multiple choice and has one correct answer of 4 possible choices. Suppose that the exam contains 20 questions of which you guess on every one. a. What is the probability that you get exactly 10 questions correct by guessing? b. What is the probability that you get at most 1 question correct by guessing? c. What is the probability that you get at least 1 question correct by guessing?...
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...
If you're taking a multiple-choice exam where each question has 5 options (a–e), and you have to randomly guess on 4 questions, what is the probability that you get at least 3 of those questions correct?
Selve the problem. (Spts.) 9) Multiple-choice questions on a test each have 6 possible answers, one of which is correct. Assume that you guess the answers to 5 such questions. a. Use the multiplication rule to find the probability that the first 2 guesses are wrong and the last 3 guesses are correct and W denotes a wrong answer 9) . That is, find P(WWCCC), where C denotes a correct answer b. Make a complete list of the different possible...
A student is taking a multiple-choice exam in which each question has four choices. Assume that the student has no knowledge of the correct answers to any of the questions. She has decided on a strategy in which she will place four balls (marked A, B, C, and D) into a box. She randomly selects one ball for each question and replaces the ball in the box. The marking on the ball will determine her answer to the question. There...
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?