39. A test has five multiple choice questions that each offer four possible answers.a) Determine the probability that a student will get two out of three questions correct byguessing on all of themb) Determine the probability that a student will pass the test (score 50% or higher) by guessingon all of them. I

Answered: 39. A test has five multiple choice…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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80 percent of UNO students drive to campus. Which is more likely (a) Out of 10 randomly selected UNO students, exactly 5 drive to campus (b) Out of 20 randomly selected UNO students, exactly 10 drive to campus.
Please answer it with proper formula and solution. Thank you.
2. On average, a saleslady in a department store spends with her customer is 4 minutes. a) Find the probability that the saleslady spends more than 3 minutes with a customer? b) Find the probability that the saleslady spends between 4 to 5 minutes with a customer?
40 Jennie's teacher told her to select two problems from a list of two C-level problems, five B-level problems, and one A-level problem. If she selected at random, what is the probability that she se- lected two B-level problems?
Kaolin is taking a multiple choice math test. Each question has seven presented answers, but only one is correct. If Kaolin guesses randomly for each of the nineteen questions the test has, determine the probability that Kaolin gets at most one question correct. A. 618719 B. 25719 C. (190) +(191)719 D 61825719 E. (61)(191)719
A quiz consists of 24 multiple choice questions. Each question has 5 possible answers, only one of which is correct. If you answer the questions completely based on guessing. what is the probability that you will answer at most 3 correctly?
The probability of visiting the zoo is 0.80. The probability of visiting the caverns is 0.55. The probability of visiting both is 0.42. What is the probability of the visiting the zoo or the caverns? 1) 0.93 2) 0.44 3) 1.35 4) 0
70 students completed a survey on what they like to have with their breakfast. There were three choices: Tea, Coffee, and Milk. All students picked at least one choice. 5 students liked all three choices; 15 students liked tea and coffee; 12 students liked coffee and milk; 14 students liked tea and milk; 12 students liked only tea; 17 students liked only coffee. How many students liked ONLY milk? What is the probability of a random student liking milk? to 3 decimal places Check Write your answer
Q.3 (i) You are taking a 50 question multiple choice test. Each question has 4 choices. Clueless on 1 question, you decide to guess. What is the probability that you will get it correct? (ii) If a passing grade is 30 correct answers, what is the probability that you will pass if you guess on all 50 questions.
Asked this one earlier, but felt like the answer were wrong because of misreading of the assignment. Please take another look
A multiple-choice test contain 9 questions, each with five options. Suppose that a student just guesses on each question. What is the probability that the student answers at most 1 question correctly? answer correct to 4 decimals

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