How does Genshin Impact prevent crookedness

Xuan does not change his wrong, and Krypton does not change his life.

As a veteran Genshin Impact player, everyone must have had the experience of drawing cards. Some people are five-star characters when they draw them, while others are always drawn with something that is not practical. So, how can you prevent crookedness?

First of all, it is necessary to understand the gacha mechanism in Genshin Impact. The card pool in the game is divided into two types: ** pool and character pool, of which the guarantee mechanism of ** pool is 80 draws must be 5 stars**, and the character pool is 90 draws must be 5-star characters. If you draw a five-star character in the pool, then the next draw must be a five-star; Vice versa.

So, how can this mechanism be used to prevent skewness?