One Dice with 4 faces. A normal Dice has 6 faces, but here we want to use a dice with only 4 faces. It can be useful in role playing games. If X is a random variable that is defining the value of a face, describe the PMF of X and the CDF of X. You can plot the PMF and the CDF of X. Part 2 Two Dice with 4 faces. • Describe the sample space when we throw these two dice. Let X be the random variable of the value of the first dice, and Y the one of the second dice. Find the probability that the sum is equal to 3 or 6.