The Probability of Rolling Up the Rim!

Believe it or not this is part of a formula to calculate the probability of winning in "roll up the rim". For those of you who are non-Canadians this is a promotional campaign for Tim Horton's coffee. Interested?

My point for posting this has nothing to do with coffee, or for that matter probability. I never would have found this if it wasn't for twitter. I have created a math feed on my tweetdeck and I find great stuff on here. Lots of garbage too. The formula above is from a post by AndrewEckford.

Why don't you give twitter and tweetdeck a try if you aren't already? You'll find it doesn't take a lot of time and you'll increase your opportunities to learn.