An unprepared student takes a three-question, true/false quiz in which he guesses the answers to all three questions, so each answer is equally likely to be correct or wrong.
a)(4)The student gets three answers wrong.
b)(4)The student gets exactly two answers correct.
c)(4)The student gets only the first answer correct.© BrainMass Inc. brainmass.com June 3, 2020, 9:35 pm ad1c9bdddf
This is a problem on binomial probability.
n = 3, p = probability of an answer being correct = 1/2
The expert examines the binomial probability for students. Neat and Step-by-step solution to all the parts of the question.