What is the probability that you will get at least 20 true/false questions correct on a...
What is the probability that you will get at least 20 true/false questions correct on a quiz with 36 questions if you are just guessing.
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What is the probability that you will get at least 20 true/false
questions correct on a...
Suppose a quiz contains 20 true/false questions. You know the correct answer to the first 10...
Suppose a quiz contains 20 true/false questions. You know the correct answer to the first 10 questions. You have no idea of the correct answer to questions 11 through 20 and decide to answer each using the coin toss method. Calculate the probability of obtaining a total quiz score of at least 85%.
A true-false test has 5 questions. What is the probability of getting at least 4 wrong...
A true-false test has 5 questions. What is the probability of getting at least 4 wrong by guessing all the answers?
In a 10-question true false test, what is the probability that by guessing randomly, you will...
In a 10-question true false test, what is the probability that by guessing randomly, you will get a. 100% b. exactly 80% c. at least 80%
A true/false test has 140 questions. A passing grade is 56% or more correct answers. a....
A true/false test has 140 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a....
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
A true/false test has 30 questions. A passing grade is 70% or more correct answers. Answer_____(Type...
A true/false test has 30 questions. A passing grade is 70% or more correct answers. Answer_____(Type an integer or a decimal.) a. What is the probability that a person will guess correctly on one true/false question?Answer________ b. What is the probability that a person will guess incorrectly on one question?Answer________ c. Find the approximate probability that a person who is just guessing will pass the test.Answer________ d. If a similar test were given with multiple-choice questions with four choices for...
A literature professor decides to give a 15 question true- false quiz. If a student takes...
A literature professor decides to give a 15 question true- false quiz. If a student takes this quiz just by blind guessing, what the probability that he/she could get exactly 10 answers correctly?
A student took a ten true-false question quiz on a statistic's class. Assuming the student is...
A student took a ten true-false question quiz on a statistic's class. Assuming the student is guessing on all the questions, what is the probability that this student answer at most 6 questions correctly?
Suppose you forget to study for an exam. The exam is multiple choice and has one...
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?...
An unprepared student makes random guesses for the ten true-false questions on a quiz
An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer.Could some one please help me?And explain to me how they got the answer?and is there another way besides the tree method?
A true/false test has 60 questions. A passing grade is 56% or more correct answers. a. What is the probability that a person will guess correctly on one true/false question? b. What is the probability that a person will guess incorrectly on one question? c. Find the approximate probability that a person who is just guessing will pass the test. d. If a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability...
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?...
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