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.

In a multiple choice question there are 4 alternative answers of which 1, 2, 3, or all may be correct. A candidate will get marks in the question only if he ticks all the correct answers. The candidate decides to tick answers at random. If he is allowed upto 5 chances to answer the question, the probability that he will get the marks in the question is

In a multiple-choice question there are four alternative answer, of which one of more are correct. A candidate will get marks only if he ticks all the answers. The candidate decides to tick at random. He is allowed upto three chance to answer the question. Find the probability that he will get marks for the question.

In a multiple choice question, there are five alternative answers of which one or more than one are correct. A candidate will get marks on the question, if he ticks all the correct answers. If he decides to tick answer all random, then the least number of choices should he be allowed, so that the probability of his getting marks on the question exceeds (1)/(8) is

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

In a 'multiple choice question' test there are eight questions. Each question has four alternative of which only one is correct. IF a candidate answers all the questions by choosing one answer for each question, then the number of ways to get exactly 4 correct answer is

A multiple choice emamination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just guessing is

A multuple choice examination has 5 questions. Each questions has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just be guessing, is