Auventis taking a multiple-choice exam in which each question has five choices. Assuming that she has no knowlodge of the correct answers to any of the questions, she has decided on a question. There are six multiple-choice questions on the exam, Complote parts (a) through (d) belod a. What is the probabily that she will got six questions comect? (Round to four decimal places as needed) b. What is the probability that she wil got al least five questions correct? (Round to four decimal places as needed)