0
A test consists of 690 true or false questions If the student guesses on each question what is the mean number of correct answers?
Wiki User
∙ 13y ago
Since there are only two options for the answer, on average the student will answer half of the answers correctly.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How can you find the grade average from 20 wrong out of 75 questions?
If you got 20 problems wrong on a 75 question test your grade would be 73% or a C. You can find that by subtracting the amount of questions you got wrong from the amount you got right, 55 in this case. Divide the amount of correct questions by the amount of questions on the test to get .733333. That is the grade.
A test consists of 10 true or false questions to pass the test the student must answer atleast 8 correctly if the student guesses on each question what is the probability that the student will pass?
7/128, or about 5.5% The student has a 1/2 probability of getting each question correct. The probability that he passes is the probability that he gets 10 correct+probability that he gets 9 correct+probability that he gets 8 correct: P(passes)=P(10 right)+P(9 right)+P(8 right)=[(1/2)^10]+[(1/2)^10]*10+[(1/2)^10]*Combinations(10,2)=[(1/2)^10](1+10+45)=56/1024=7/128.
Where are the answers to 1990 instructional fair inc mathIf8743 page 93?
What are all the correct answers for Instructional Fair, Inc. worksheet IF8754?
60 questions - 15 missed?
If you're looking for your grade... You got 45 questions out of 60 correct. 45/60 = .75 or 75%
What is your grade if you miss 2 out of 10 problems?
Missing two questions = getting eight questions correct. 8/10 = 80%
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
What are the answers to 20 questions?
the correct aftermath to the situation/question is what the answer is.
What are the answers to questions?
I can provide answers to specific questions you ask. What would you like to know?
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
What is the answer to question 78 on impossible quiz?
Four (All the answers here are answers from previous questions, but only 'Four' was a correct answer.)
What is the answer to question 78 on The Impossible Quiz?
Four (All the answers here are answers from previous questions, but only 'Four' was a correct answer.)
How many questions can you miss to get an 85 percent on a 40 question test?
If you miss 6 questions you will get an 85% on a 40 question test. To calculate various test score questions, simply divide the number of correct answers by the number of total questions. For example, on your particular question, if you divide 34 (the number of correct answers) by 40 (the total number of test questions), the answer is .85, or 85%.
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 am I wasting my time on this page?
You seek knowledge and enlightenment and with the correct phrasing of the question you will receive answers...for without questions, there would be no Answers.
Are the answers given by the ouija board correct?
The ouija board can give correct answers, but it can also give incorrect answers, and jumbled up answers. There is no yes or no answer for this question, because the board is capable of both being correct and incorrect to questions that are asked.
How reliable are the answers to the questions?
it depends upon you if you think the answer given to your question is correct or not. the best way to know if the answer is correct would be to check them yourself. i think this website aims people to be more active in seeking answers to their own questions.
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.
