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World Series

Probability puzzles require you to weigh all the possibilities and pick the most likely outcome.


Puzzle ID:#8787
Fun:*** (2.25)
Difficulty:*** (2.72)
Submitted By:lesternoronha1****
Corrected By:shenqiang




The world series consists of up to seven games, the first team to win four wins the series. Team A will play in their home field for games 1, 2, and 6 and 7 if necessary. Games 3, 4, and 5 (if necessary) will be played at team B's home field. Assuming each team has a 50% chance of winning every game, which team is more likely to have the home field advantage the majority of the time? For extra credit what is the expected number of games played in each home field?

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