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.
Chests must be unlocked with a Hextech key. Players can earn up to four chests at a time and chest slots regenerate at the rate of one chest slot every 7 days. This is shown in the Summoner Profile. Champions eligible to earn chests are shown on the Champion Profile. Players can only earn chests on champions they own.