The standard deviation and range are both measures of the spread of a data set. Each number tells us in its own way how spaced out the data are, as they are both a measure of variation. The range relies on a very simple formula of subtracting the minimum data value from the maximum.
1 Locked Gold Chest, a chest found in the dungeon, which is opened with a Gold Key. 2  Pink Dungeon Chest, a chest that can be crafted. 3  Blue Dungeon Chest, a chest that can be crafted. 4  Green Dungeon Chest, a chest that can be crafted.
Mastery Chests. Earn locked Mastery Chests by performing well across a variety of champions or as part of a team. When you or someone in your premade party earns any S rank, youâll acquire a chest. You can earn up to four chests each month, and each champion you play can earn you one chest per season.