# a student randomly guesses on 10 true or false questions

b)Is getting exactly 10 questions, A 50-question true-false exam is given. You can change your choices at any time by visiting Your Privacy Controls. • Each question has three possible choices for the answer. Suppose that a bike rents for $4 plus$1.50 per hour. Use T = true and F = false and For a special at Mel's Diner, a customer can choose from 4 appetizers, 6 entrees, 3 side dishes and 5 desserts. aannaallaauurraa is waiting for your help. How many are expected to not to use the foil as their main weapon?e. there are 10 questions on a true or false test. Anonymous. Find the probability that the student correctlyanswers all ten questions. The student is damn lucky.. 0 1. A student takes a 32-question multiple choice exam, but did not study and randomly guesses each answer. Six different colored dice are rolled. A student feels unprepared for this test and randomly guesses? Suppose that a quiz consists of 20 True-False questions. How many are expected to attend their graduation?e. The Study-to-Win Winning Ticket number has been announced! Guessing on a Test An exam has ten true-false questions. What is the probability of picking a... A museum worker randomly displays 6 historical writings in a row. Your rented a bike to ride around Central Park in New York City, you picked up the bike at 11:00 a) 80 miles 4 hours b) 1 mile 4 hours c) 20 miles1 hour d) 4 mile The observation is the student’s answer for each question. EMAILWhoops, there might be a typo in your email. The observation in the student’s answer (T or F) for each question. How do you calculate experimental probability? How much did you bike rental cost? Thus, the probability of getting exactly one correct answer is #10/1024=5/512~~0.010#, 23377 views Find the probability that at most 10 offer such courses.f. Our educator team will work on creating an answer for you in the next 6 hours. Record the coordinate points from the graph. At the Fencing Center, 60 percent of the fencers use the foil as their main weapon. In your solution, please be sure to show the exact steps you used to arrive at . Thus, The probability that the student gets 5 out of the 10 questions right, This site is using cookies under cookie policy. Click 'Join' if it's correct, By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. X \sim$d. We and our partners will store and/or access information on your device through the use of cookies and similar technologies, to display personalised ads and content, for ad and content measurement, audience insights and product development. Find out more about how we use your information in our Privacy Policy and Cookie Policy. and is there another way besides the tree method? Enter your answer in the box. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. In words, define the random variable$X$.b. 2 Answers. What do these ordered pairs represent? A test consists of 10 true/false questions. A student who has not studied answers all ten questions by just guessing. Can someone make a MEET so I can join?? Is it more likely that 12 or that 13 will offer such courses? What is the slope of a line passing through the points (2, 5) and (0, −4)? 1. Probability of at least one correct answer: #1023/1024#, Probability of exactly one correct answer: #5/512#, The probability of an event occurring can be calculated as, #"Number of ways the event can occur"/"Total possibilities"#. In words, define the random variable$X$.b. Yahoo is part of Verizon Media. …. …, Please tell me if my answer is correct. Found 2 solutions by stanbon, Theo: You can view more similar questions or ask a new question. around the world. Each correct answer is worth 10 points. Thank you! We randomly survey 25 fencers at the Fencing Center. You must be logged in to bookmark a video. All right. Let X be a random variable that takes values between 0 and c only, for some c≥0, so that P(0≤X≤c)=1. Give the distribution of$X . What is the probability that... See all questions in Theoretical and Experimental Probability. We are interested in the number that offer distance learning courses.a. If the student guesses on each question, what is the probability that the student will pass the test? Each correct answer is worth 10 points. X \sim$d. Find each probability.$P(\text { at most half correct })$, Prisana guesses at all 10 true/false questions on her history test. In words, define the random variable$X$.b. Explain using sentence(s). A 50-question true-false exam is given. .50^10 questions = .0009765625 rounded = .0009777 Just not as likely as you might think. An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability the student correctly answers the given number of questions. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Grandma has 1 remaining cup of sugar. A student guesses at all 5 questions on a true-false quiz. You may need to download version 2.0 now from the Chrome Web Store. A student randomly guesses on 10 true or false questions. X \sim$d. I got false and the number is 182 but. There are a total of 10 questions A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability that the student passes the quiz with a grade of at least 70% of the questions correct, 1. Find each probability.$P(\text { at least } 3 \text { correct })$, A student guesses at all 5 questions on a true-false quiz. Based on numerical values, would you be surprised if all 22 attended graduation? One question is true-false and the other is multiple . Of interest is the number of dice that show a one.a. Consider an unprepared student who randomly guesses on each question. Let X be the number of questions answered correctly. A student takes a 10-question true-false quiz, but did not study and randomly guesses each answer. The observation is the student’s answer for each question. Is it more likely that three or that four dice will show a one? lol im bored. Find the probability that the student passes the quiz with a grade of at least 70% of the questions correct. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. List the values that $X$ may take on.c. STAT. 1-.0009777 = .9990223 that there is at least once correct answer. Question 886227: Write out the sample space. A student randomly guesses the answers to a four question true-or-false quiz. So that's the chance that they get all 10 of them correctly. There is some slight ambiguity in the wording of the question, so we will address both interpretations. Determine whether each of the following statement is true (i.e., always true) or false (i.e., not always true). Based on numerical values, would you be surprised if all 25 did not use foil as their main weapon? Find the probability that the student passes the quiz with a grade of at least 70 percent of the questions … Another way to prevent getting this page in the future is to use Privacy Pass. Find the probability that the student passes the quiz with a grade of at least 70 percent of the questions … A student randomly guesses on 10 true or false questions. Then, A quiz consists of 10 multiple-choice questions, each with 4 possible answers. On average, how many dice would you expect to show a one?e. Could some one please help me? An exam has ten true-false questions. Find the probability that the student correctly answers all ten questions. A student takes a 10 question multiple choice exam and guesses on each question Each question has five choices What is the probability of getting at least 6 correct out of the ten questions? An unprepared student makes random guesses for the ten true-false questions on a quiz. So we're just do 1/2 to the 10th which will end up giving us one out of 1024. If 60 or more correct is necessary to pass, what is the probability that a student will pass by random guessing? Give the distribution of $X . Suppose you randomly pick 13 such institutions. A student takes a 10-question true-false quiz, but did not study and randomly guesses each answer. observation is the students answer (T or F) for each question. Find the probability that all six dice show a one.f. Use The Binomial Model To Determine The Probability That The Student Gets 5 Out Of The 10 Questions … Probability of at least one correct answer: There is only one way the student can have no correct answers, meaning there are #1024-1=1023# ways the student can have at least one correct answer. View Winning Ticket. Justify your answer numerically. When answering a question on a multiple choice test, a student is given 5 choices, one of which is correct. I'm not sure what to, Suppose that we have a box that contains two coins: A fair coin: P(H)=P(T)=0.5 . Add your answer and earn points. Find each probability.$P(\text { at least half correct })\$. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Performance & security by Cloudflare, Please complete the security check to access. We are interested in the number of fencers who do not use the foil as their main weapon.a. A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Question 296701: A) A test consists of 10 true and false questions. Find the probability that 17 or 18 attend.f. 2/100 = .50 (True and False Outcomes) Simple Interest: that prob would be (1/2)^10 = 1/1024 Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. What is the probability that the student gets exactly 7 correct? To pass the test a student must answer at least eight questions correctly.