Restaurants in Wuhan have begun the N-l system, which means groups of customers are supposed to order one fewer dish than the number of people in the group.
武汉的餐馆开始实行 N-1 模式,这意味着顾客群体点菜的数量应该比群体的人数少一道。
2
But the system variance is going to be on the order of the square root of N times epsilon.