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A test has 5 multiple choice questions each with 4 choices what is the probability of guessing exactly 3 out of 5 right?
Wiki User
∙ 9y ago
Since there are 4 choices the probability of guessing any given answer correctly is 1/4 or .25; call this a success and denote it by p The chance of guessing wrong is .75; call this a failure and denote it by q. So the chance of 3 out of 5 correct answers is 5C3xp^3q^(5-3)=10p^3q^2 5C3x(.25)^3(.75)^2 5x4x3/3x2(.15625)(.5625) 10(.12625)(.5625)=.0877891
Wiki User
∙ 9y ago
Anonymous
A candidate is taking a multiple-choice exam. For each question on the exam, there are four possible choices (i.e. A, B, C and D). Because the candidate has no knowledge of the subject, he relies on pure guesswork to answer each question independent of how he answers any previous questions. Find the probability that the candidate answers four questions wrong in a row before he finally answers the fifth question correctly
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A multiple choice question has has 5 choices What is the probability of guessing it correctly?
There is 1 right answer out of 5 possible answers, so the probability of guessing it correctly is 1/5 or 20% or 0.2.
A test has 2 multiple choice questions each with 5 choices what is the probability of guessing the correct answers to both questions?
You have a 4 percent chance of guessing both answers correctly assuming there is only one correct answer to each question and that you may only answer once per question.
What is the probability of guessing the correct answer to a multiple choice question if there are five choices?
Not sure what a mulitple choice qustion is but if it is anything like a multiple choice question, it is 1/5 or 20%. I strongly advise you to get a dictionary, learn to spell or use a spell checker.
What is the probability of getting five questions correct on a 20 question multiple choice test?
The answer depends on the number of choices available for each question.
Georgia is taking a 5 question multiple choice quiz in which each question has 4 choices She guesses on all questions What is the probability that she answers exactly 2 of the questions correctly?
64/256
A multiple choice question has has 5 choices What is the probability of guessing it correctly?
There is 1 right answer out of 5 possible answers, so the probability of guessing it correctly is 1/5 or 20% or 0.2.
A test has 2 multiple choice questions each with 5 choices what is the probability of guessing the correct answers to both questions?
You have a 4 percent chance of guessing both answers correctly assuming there is only one correct answer to each question and that you may only answer once per question.
What is the probability of guessing the correct answer to a multiple choice question if there are five choices?
Not sure what a mulitple choice qustion is but if it is anything like a multiple choice question, it is 1/5 or 20%. I strongly advise you to get a dictionary, learn to spell or use a spell checker.
What is the probability of getting five questions correct on a 20 question multiple choice test?
The answer depends on the number of choices available for each question.
What are the odds against guessing a multiple choice answer with four choices?
25%
A test is composed of six multiple choice questions where each question has 4 choices If the answer choices for each question are equally likely find the probability of answering more than 4 questio?
love
Georgia is taking a 5 question multiple choice quiz in which each question has 4 choices She guesses on all questions What is the probability that she answers exactly 2 of the questions correctly?
64/256
What is the probability of guessing the correct answer to a multiple choice if there are five choices?
Not sure what a mulitple choice qustion is but if it is anything like a multiple choice question, it is 1/5 or 20%. I strongly advise you to get a dictionary, learn to spell or use a spell checker.
What is the probability of getting exactly 7 out of 12 multiple choice questions right if a student randomly guesses one of the five possible choices for each question?
It is 0.0033
A test has 2 multiple choice questions each with 3 choices what is the probanility of guessing the correct answers to both questions?
The probability of getting both answers correct is one chance in nine (0.1111+). There are three possible answers for each question, so there is a 1/3 chance of getting the correct answer to one question. To get the correct answer for both questions, the chances are 1/3 x 1/3 or 1/9.
Why do you use multiple choice tests in school?
Multiple choice tests are commonly used in schools because they are efficient for assessing a large number of students quickly. They also help to standardize grading and reduce subjective bias in evaluation. Additionally, they can measure a wide range of knowledge and skills.
What is the probabi lity of guessing the correct answer to a multiple choice question if there are 5 choices?
It is 1/5.
