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If a student randomly guesses at five multiple choice questions, find the probability that the student gets exactly three correct. Each question has five possible choices.
2023年1月11日
numerade.com
assume that random guesses are made for eight multiple choice questions on an sat test so that there are n8 trials each with probability of success correct given by p03 find the indicated pr 56287
2021年9月14日
numerade.com
A multiple-choice test has 200 questions, each with 4 possible answers, of which only 1 is the correct answer. What is the probability that sheer guesswork yields from 25 to 30 correct answers for 80 of the 200 problems about which the student has no knowledge? | Numerade
2021年8月12日
numerade.com
A multiple-choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability the student answers less than five questions correctly? | Numerade
2021年3月18日
numerade.com
In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/4 be the probability that he knows the answer and 1/4 be the probability that he - Mathematics | Shaalaa.com
1 个月前
shaalaa.com
12:00
A multiple choice quiz has 200 questions, each with 4 possible ... | Filo
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2023年5月11日
askfilo.com
This multiple choice probability puzzle has been causing arguments for years
10 个月之前
boingboing.net
A multiple choice exam has 20 questions; there are four choices for each question. a. A student guesses the answer to every question. Find the chance that he guesses correctly between four and seven times. b. Find the minimum score the instructor can set so that the probability that a student will pass just by guessing is 20 % or less. | Numerade
2021年4月25日
numerade.com
A quiz has 5 multiple-choice questions. Each question has 4 choices; 1 is the correct answer and the other 3 are incorrect. Suppose that you guess all the answers. (a) P( at least 1 right )=1-P( (b) Use the equation in part (a) to find the probability of getting at least 1 right. | Numerade
3 个月之前
numerade.com
A single multiple-choice question has n choices, only one of which is correct. A student knows the answer with probability p. If the student does not know the answer, he or she guesses randomly. Find the conditional probability that the student knew the answer, given that the question was answered correctly. | Numerade
5 个月之前
numerade.com
A multiple-choice test contains 25 questions, each with four answers. Assume that a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability that the student answers fewer than 5 questions correctly? | Numerade
2021年3月17日
numerade.com
A pop quiz consists of three true-false questions and three multiple choice questions. Each multiple choice question has five possible answers. If a student blindly guesses the answer to every question, what is the probability that the student will correctly answer all six questions? | Numerade
2021年3月1日
numerade.com
Assume that random guesses are made for eight multiple choice questions on an SAT test, so that there are n=8 trials, each with probability of success (correct) given by p=0.20 . Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is exactly 7 . | Numerade
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