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March 29, 2015

Homework Help: Math (Probability)

Posted by Dan on Tuesday, May 21, 2013 at 1:37am.

Bret and Shawn are playing a game where each turn the players roll a 20-sided die fair and then add the number they get to their score. The winner is the player with the highest score at the end of the game (there may be a tie). Before the last turn, Shawn is winning by 10 points. The probability that Bret can come back and win the game can be expressed as ab where a and b are coprime numbers. What is a+b?

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