1. The problem statement, all variables and given/known data A ten question multiple choice exam is given, and each question has 5 possible answers. Pascal Gonyo takes this exam and guesses at every question. Find the probability that he will get at least 9 questions correct. Without using the binomial probability formula, determine the probability that he gets exactly two questions correct. 2. Relevant equations P(at least 9) + P(less than 9) = 1 3. The attempt at a solution P = 1-P(8) I'm stuck on this. I found the probability of at least one question correct using this formula but I can't get it to work for 9.