The quiz for this class each week has 5 multiple choice questions with 4 choices each, worth 2 points each. Suppose someone is just guessing on every question. Let X = total number of questions correct, Y = total points earned. Solve 14, 15 and 16. 14. X have a binomial distribution with n and p equal to: (a) 4, 0.5 (b) 5, 0.5 (c) 5, 0.25 (d) 4, 0.2 15. The expected value of X is : (a) 2.0 (b) 2.5 (c) 1.25 (d) 0.8 16. The expected value of Y is : (a) 5.0 (b) 2.5 (c) 1.6 (d) 4.0