He was answering the question.

A student answers a multiple choice question with 5 alternatives, of which exactly one is correct. The probability that he knows the correct answer is p, 0 lt p lt 1 . If he does not know the correct answer, he randomly ticks one answer. Given that he has answered the question correctly, the probability that he did not tick the answer randomly, is

Directions: The questions below consist of a question followed by two statements labelled l and II. You have to decide if these statements are sufficient to answer the question. Give answer Does he go to office everyday? Statements: I. He is never fined for absence. II. He is never at his home during office hours.

In a competitive examination, an examinee either guesses or copies or knows the answer to amultiple choice question with four choices. The probability that he makes a guess is 1/3 and the probability that he copies the answer is 1/6. The probability that the answer is correct, given that he copiedit, is 1/8. Find the probability that he knows the answer to the question, given that he correctly answered

In a multiple choice question, there are four alternative answers of which one or more than one is correct A candidate will get marks on the question only if he ticks the correct answer. The candidate decides to tick answers at a random. If he is allowed up to three chances to answer the question, then find the probability that he will get marks on it.

A multiple choice test question has five alternative answers, of which one is home work, then he is sure to identify the correct answer; otherwise, he chooses Let E: denotes the event that a student does his home work with P(E)=P and F: denotes the event that he answer the question correctly. (a) If p=0.75 the value of P(E/F) equals