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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.
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What is the probability of answering 50 questions right out of 100?
Depends on the questions, and how they are answered. T/F, multiple choice, matching, essay, etc. Could be randomly answering, making educated guesses, or applying some amount of knowledge on the subject. Each of these impacts the probability of supplying correct answers.
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
What is the probability of getting a perfect score in a three-question true or false quiz?
The probability of getting a perfect score in a three-question true or false quiz is 100% if you studied and retained the subject matter and the questions addressed that subject. If, however, you did not study, and you made pure guesses without any bias towards an answer partially based in your (now rather poor) knowledge, then the probability of getting any one question correct is 50%, so the probability of getting all three questions correct is 50% to the third power, or 12.5%.
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.
How many syllables does the word guesses have?
2
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.
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
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
A multiple choice quiz consists of 6 questions each with 4 possible answers If a student guesses at the answer to each question then the mean number of correct answers is?
If there are four possible answers to a question, then a guessed answer would have a probability of 1 in 4. If there are six questions, then the mean number of correct answers would be six times 1 in 4, or 1.5
When test instructions say to Answer the multiple choice questions and fill in the blanks if known Does it mean to fill in the blanks only if known but answer all questions?
A test instruction that says, "Answer the multiple choice questions and fill in the blanks if known" could be very confusing to students (and students should ask for clarification before continuing the test). It should be written more clearly as, "Answer the multiple choice questions and fill in the blanks" because most often you are expected to answer all questions on a test. NOTE: If you ever see this on a standardized test, ASK before you start that section.
What is the probability of answering 50 questions right out of 100?
Depends on the questions, and how they are answered. T/F, multiple choice, matching, essay, etc. Could be randomly answering, making educated guesses, or applying some amount of knowledge on the subject. Each of these impacts the probability of supplying correct answers.
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 test has 8 questions that has 3 possible answers only one is correct If Judy who forgot to study for the test guesses on all questions what is the probability that she gets 3 right?
The probability that she gets exactly 3 right is 8C3*(1/3)3*(2/3)5 = 0.2731 approx.
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
If a student guesses on all 5 questions on a tru-false exam what is the probability that he or she gets at least 3 answers correct?
2
A test consists of 15 true false questions what is the probability if the student guesses on all 15 questions?
What is the probability of what?Guessing them all correctly?Getting half of the correct?Getting them all wrong?PLEASE be specific with your questions if you want WikiAnswers to help.
What is plural form for guess?
The plural form of the noun 'guess' is guesses.
