What is the probability that if there are 5 questions in a true or false examination a student can guess wrongly the answers to all questions? - Quora
On a multiple choice examination with 3 possible answers for each of the 5 questions, what is the probability that a student would get 4 or more correct answers just by guessing? - Quora
Guess Where: The Position of Correct Answers in Multiple-Choice Test Items as a Psychometric Variable
![A test consists of True' or 'False' questions. One mark is awarded for every correct answer while \( \frac { 1 } { 4 } \) mark is deducted for every wrong A test consists of True' or 'False' questions. One mark is awarded for every correct answer while \( \frac { 1 } { 4 } \) mark is deducted for every wrong](https://toppr-doubts-media.s3.amazonaws.com/images/9125881/ba10b20f-c91c-4240-94cf-aba182fe6268.jpg)