## Problem of the Week 1169## Roll the DiceWhat is the expected number of distinct faces seen when throwing a 6-sided die n times? Here is a related problem: Suppose a standard die is rolled 6 times. Which is more likely: seeing 3 distinct faces or seeing 5 distinct faces? Source: Julian Beasley; Matthew Conroy offers a nice download about dice problems. © Copyright 2013 Stan Wagon. Reproduced with permission. |

25 October 2013