B. Enoch realises that most of the questions have one very unrealistic choice that he can eliminate. Some of them have two of thes. Is the distribution of his number of correct guesses. Why or why not

Enoch didn't study for his Statistics test; he knew it would be multiple choice with only 5 questions. Each question has 4 possible answers (a, b, c, & d) but only 1 answer is correct for each question. Assuming Enoch is not able to narrow down the choices in any way and has to guess the answer, the distribution of his number of correct answers meets the requirements for the binomial distribution; each question represents an independent trial, each question has two outcomes (right or wrong), the probability of success is the same for each question when guessing randomly, and there is a fixed number of questions. a. What is the probability that Enoch will get a passing grade (at least 3 questions correct) by randomly guessing? Round your answer to 3 decimal places