A student is taking a multiple choice exam in which each question has four choices . Assume that the student has knowledge of a correct answer to any of the questions. She has to decide on a strategy in which she will place four balls (marked A,B,C and D) into a box. She randomly selects one ball for each question and replaces the ball in the box. The marking on the ball will determine her answer to the question. There are five multiple choice question on the exam. What is he probability that she will get:
a. Five question correct
b. At least four question correct
c. No question correct
d. No more than two question correct
This solution explains how to apply binomial distribution. The solution is provided in a Word document.