In case anyone is interested, here is some info from the 1 vs 100 forum:
http://xbox360.ign.com/articles/992/992675p1.html
"Straight from our design team:
Role determination is based on weekly stats for speed, accuracy, and the number of questions answered. These stats are reset weekly to increase the opportunities for anyone to be a part of the Mob or to be the One. Please note that score is not considered in role determination.
To increase your chances of being chosen as a member of the Mob or as the One, play often and to the best of your ability. Good Luck!
Role Limitation:
One: A player can only be the One once per season.
Mob: A mob member is not allowed to be in the mob again within the same Primetime episode."
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Those extended play questions start busting my balls after about number 20.
