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If You guesses on a multiple choice question and there were 4 choices for the problem what is the percent of probability you will guess wrong?
If there are 4 choices and you randomly choose one, you have a 25% chance that it will be correct, with 75% that it will be wrong. However, if there is one answer that you know is not correct, you can eliminate that one. Then if you choose from the remaining three, you will have increased your chances of getting it right to 33%. That doesn't sound like a whole lot, but it really would help you.
What else can I help you with?
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
Tristan guesses on two multiple-choice questions on a test if each question has five possibe answers choices what is the probability that he gets the first one correct and the second one incorrect?
4/25
Students are required to answer 2 True of False questions and 1 multiple choice questions with 4 responses If the answers are all guesses what is the probability of getting all 3 questions correct?
The probability of correct true & false question is 1/2 and the probability correct multiple choice (four answer) question is 1/4. We want the probability of correct, correct, and correct. Therefore the probability all 3 questions correct is 1/2 * 1/2 * 1/4 = 1/16.
A student takes a 5 question quiz with 4 choices for each question if the student guesses at random on each question what is the probability that the student gets exactly 4 questions correct?
This is abinomial distribution; number of trials (n) is 5, probability of success (p) is 1/4 or 0.25. With this information you can go to a Binomial Distribution Table and find the solution. Within the section of values for n=5 and p=.25, read from the section the probability of 4 which is 0.0146 (see related link for table).
A student takes a 10 question true or false exam and guesses on each question Find the probability of passing if the lowest passing grade is 6 correct out of 10?
5 out of 10
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
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 student takes a 20-question multiple choice exam with five choices for each question and guesses on each question Find the probability of guessing at least 15 out of 20 correctly?
15%? (My math sucks - I probably got that wrong).
Tristan guesses on two multiple-choice questions on a test if each question has five possibe answers choices what is the probability that he gets the first one correct and the second one incorrect?
4/25
If a student guesses on 10 questions on a multiple choice test abcd find the mean expected correct guess?
In a multiple-choice test with 4 options (a, b, c, d) for each question, the probability of guessing correctly for each question is ( \frac{1}{4} ). If a student guesses on 10 questions, the expected number of correct guesses can be calculated by multiplying the number of questions by the probability of a correct guess: ( 10 \times \frac{1}{4} = 2.5 ). Therefore, the mean expected correct guesses for the student is 2.5.
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 question?
To find the probability of getting at least 6 correct answers on a 10-question multiple-choice exam where each question has 5 choices (with only one correct answer), we can model this situation using the binomial probability formula. The probability of guessing correctly on each question is ( p = \frac{1}{5} ) and incorrectly is ( q = \frac{4}{5} ). We need to calculate the sum of probabilities for getting exactly 6, 7, 8, 9, and 10 correct answers. Using the binomial formula, the probability ( P(X = k) ) for each ( k ) can be computed, and then summed to find ( P(X \geq 6) ). The resulting probability is approximately 0.0163, or 1.63%.
If a multiple choice quiz consists of 50 questions each with 5 possible choices find the mean for the number of correct answers if a student guesses on each question?
25
Students are required to answer 2 True of False questions and 1 multiple choice questions with 4 responses If the answers are all guesses what is the probability of getting all 3 questions correct?
The probability of correct true & false question is 1/2 and the probability correct multiple choice (four answer) question is 1/4. We want the probability of correct, correct, and correct. Therefore the probability all 3 questions correct is 1/2 * 1/2 * 1/4 = 1/16.
Under Binomial distribution a standard test consists of multiple choice questions with 5 possible choices. How do you ensure that a student who randomly guesses will obtain an expected score of 0?
In a Binomial distribution, if a student randomly guesses on multiple-choice questions with 5 possible choices, the probability of selecting the correct answer is ( p = \frac{1}{5} ) and the probability of selecting an incorrect answer is ( q = 1 - p = \frac{4}{5} ). The expected score for a student guessing on ( n ) questions is calculated as ( E(X) = n \cdot p ). To ensure that a student who randomly guesses has an expected score of 0, the number of questions ( n ) must be set to 0, or alternatively, the scoring system must be adjusted so that the expected value of scoring remains zero, such as by introducing penalties for incorrect answers.
A student takes a 5 question quiz with 4 choices for each question if the student guesses at random on each question what is the probability that the student gets exactly 4 questions correct?
This is abinomial distribution; number of trials (n) is 5, probability of success (p) is 1/4 or 0.25. With this information you can go to a Binomial Distribution Table and find the solution. Within the section of values for n=5 and p=.25, read from the section the probability of 4 which is 0.0146 (see related link for table).
A student takes a 10 question true or false exam and guesses on each question Find the probability of passing if the lowest passing grade is 6 correct out of 10?
5 out of 10
Preet writes a multiple-choice test.The test has 5 questions.Each question has 4 possible answers.Preet guesses each answer.Find the probability of each event?
Each guess has a 25% chance of being correct and a 75% chance of being wrong. Guessing right or wrong on one question does not affect the odds on the next one.
