How does dropping both the highest and lowest roll on three 20-sided dice affect the average? Is it the same thing as just rolling one die? - Quora
![probability - On average, how many times must I roll a dice until I get a $6$? - Mathematics Stack Exchange probability - On average, how many times must I roll a dice until I get a $6$? - Mathematics Stack Exchange](https://i.stack.imgur.com/iItFE.jpg)
probability - On average, how many times must I roll a dice until I get a $6$? - Mathematics Stack Exchange
In layman's terms, what is the average difference in the results between rolling one d20 or rolling two d20's and taking the best result? - Quora
![probability - What is the average of rolling two dice and only taking the value of the higher dice roll? - Mathematics Stack Exchange probability - What is the average of rolling two dice and only taking the value of the higher dice roll? - Mathematics Stack Exchange](https://i.stack.imgur.com/xONws.png)