26. A dice is rolled 4 times. What is the probability of showing a 5 on every roll? ______________(Round to 4 decimal places) _______ 27. Wyatt buys a bag of cookies that contains 4 chocolate chip cookies, 7 peanut butter cookies, 7 sugar cookies and 6 oatmeal raisin cookies. What is the probability that Wyatt randomly selects a peanut butter cookie from the bag, eats it, then randomly selects another peanut butter cookie? (Round your answer to 4 decimal places.) ___________ 28. Ivan buys a bag of cookies that contains 6 chocolate chip cookies, 9 peanut butter cookies, 4 sugar cookies and 7 oatmeal cookies. What is the probability that Ivan randomly selects a sugar cookie from the bag, eats it, then randomly selects a peanut butter cookie? Probability = (Round your answer to 4 decimal places.) ________

29. A bag contains 8 red marbles, 6 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. Find the following probabilities and round to 4 decimal places. a. The probability that all the marbles are red is b. The probability that none of the marbles are red is ________________ 30. A hacker is trying to guess someone's password. The hacker knows (somehow) that the password is 3 digits long, and that each digit could be a number between 0 and 6. Assume that the hacker makes random guesses. What is the probability that the hacker guesses the password on his first try? Round to six decimal places. Probability = ______

31.