A student did not study and has to guess on each question of a 20 question multiple choice test.  There are four answer choices for each question.

A multiple-choice test has 20 questions with 4 answer choices. If a student guesses on every question, what is the probability of getting 8 questions correct? (hint: use the binomial probability formula)

A student is taking a multiple choice test consisting of five questions, each with four options for each question. The student selects the answers at random.a) What is the probability that the student will get at least one question correct?b) Calculate the expected number of questions correct.

A multiple-choice test contains 8 questions. There are four possible answers for each question. In how many ways can a student answer the questions on the test if the student answers every question? Select one:a.32b.84c.48d.None of the otherse.1

make it 20 different multiple choice questions with answers and explanation

Exactly 3000 students wrote a multiple-choice test comprising exactly five questions, each question, in turn, having exactly five answer choices, exactly one of which is correct. Every question correctly answered fetches 4 marks and every question incorrectly answered fetches –1 mark. If each student attempted all the questions and the answer choices marked by no two students are the same for all the five questions, then the number of students with a net positive score in the test is at least