RANDOM VARIABLES

如果修改边权的边如果不是组成最小生成树的边，那么肯定不会有影响。 那么对于其他的边来说，就把它删了然后找到最短的替代边，和原树修改的边权中选小的那个即可。 其实就是次小生成树的变种，只是保存每一条边删除以后的最小值罢…

COUNTING, PERMUTATIONS, AND COMBINATIONS PART 1 Counting principle and factorial (计数原理与阶乘) Part 2 Permutations (排列) Part 3 Combinations (组合) Part 4 Combinatorics and probability

Genghis Khan(成吉思汗)(1162-1227), also known by his birth name Temujin(铁木真) and temple name Taizu(元太祖), was the founder of the Mongol Empire and the greatest conqueror in Chinese history. After uniting many of the nomadic tribes on the Mongolian ste…

MODELING DATA DISTRIBUTIONS PART 1 Percentiles PART 2 Z-scores PART 3 Effects of linear transformation PART 4 Density curves PART 5 Normal distribution and the empirical rule

印度新德里：在宝莱坞巨星 Amitabh Bachchan 加入元宇宙之后，另一位宝莱坞演员 Salman Khan 周三宣布，他将很快与 BollyCoin 合作推出NFT。 元宇宙是指物理、增强和虚拟现实在共享在线空间中的融合。 为了推出NFT，BollyCoin.com …

1.Khan现身Doinb直播间，不装了，我是FPX.Khan，我摊牌了 Khan加盟FPX的消息早已被实锤，但FPX迟迟没有进行官宣。 不过在今日凌晨Doinb直播过程中，失踪人口Khan出现在了他的直播间，并让Doinb帮他点外卖。给观众…

题目： Genghis Khan(成吉思汗)(1162-1227), also known by his birth name Temujin(铁木真) and temple name Taizu(元太祖), was the founder of the Mongol Empire and the greatest conqueror in Chinese history. After uniting many of the nomadic tribes on …

PROBABILITY PART 1 Basic theoretical probability PART 2 Basic set operations PART 3 Experimental probability PART 4 Multiplication rule for independent events PART 5 Multiplication ru