Programming, Statistics.
available is level 3, 4, and 5 (usually denoted as 3-star, 4-star, and 5-star, respectively). We will use them as our domain of possible inputs. The item’s probability to obtain in one roll is 0.945, 0.05, and 0.005 for level 3, 4, and 5 rarity items, respectively. If in 9 consecutive rolls, the