(4 pts) 1. Give one example of a Bernoulli random variable. (4 pts) 2. Consider an experiment that involves repeatedly rolling a six- sided die. Which of the following is a binomial random variable? A. The number of rolls until a "4" is rolled for the rst time. B. The number of times that a "4" is rolled when the die is rolled six times. C. The sum of the numbers observed on the rst six rolls. D. The number of rolls until a \"4\" is rolled twice. E. It is not possible to have a binomial random variable when rolling a six-sided die because a binomial random variable allows only two possible outcomes, not six