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The College Honor Society sells hot pretzels at the home football games. The pretzels are sold for $1.00 each, and the cost per pretzel is $.30. Any unsold pretzels are discarded because they will be stale before the next home game. The frequency distribution of the demand for pretzels per game is presented as follows:
Unit Sales Volume Probability
2,000 pretzels 0.1
3,000 pretzels 0.15
4,000 pretzels 0.2
5,000 pretzels 0.35
6,000 pretzels 0.2
The conditional profit per game of having 4,000 pretzels available but only selling 3,000 pretzels is