A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 4 answer choices – a, b, c, d – and only one correct answer. What is the probability that he answered neither of the problems correctly?Write your answer as a fraction in simplest form.

A problem in Statistics is given to the three students A, B, and C whose chances of solving it are 1/3, 1/4 and 1/5 respectively. What is the probability that the problem is solved.a.1/2b.2/3c.1/5d.3/5

Q18. The probability that a student knows the correct answer to a multiple choice question is 2/3. If the student does not know the answer, then the student guesses the answer. The probability of the guessed answer being correct is 1/4.Given that the student has answered the question correctly, the conditional probability that the student knows the correct answer is*2/33/45/68/9

Select the correct answerA problem is given to three students whose chances of solving it are 1/2, 1/3and ¼ respectively. What is the probability that the problem will be solved?Options1/21/43/47/12

A problem is given to three students whose chances of solving it are 1/2, 1/3 and 1/4 respectively.What is the probability that the problem will be solved?Choices:- 1/2 1/4 3/4 7/12

A student attempts a test with 10 multiple-choice questions, where each question has 4 possible options. She does not know the correct answer to any of the questions and randomly selects one of the 4 options for each of them. What is the probability that she will get 3 questions correct?10C3(1/4)1010C3(3/4)3(1/4)710C3(1/4)3(3/4)7Binomial probability cannot be used here.