Question 1112748
<font face="Times New Roman" size="+2">


Presuming each side of the 20-sided die had a different number on it and also presuming that one of those numbers was a 1, then the probability of a 1 on a single roll is the number of ways that you can have a successful outcome (1), divided by the number of possible outcomes (20).  Just like any other probability.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

</font>