Posted by Anonymous on Saturday, November 14, 2009 at 10:48am.
The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?

Math  PsyDAG, Saturday, November 14, 2009 at 11:17pm
There is a 1/6 chance of getting any of the numbers 1, 2, 3, 4, 5 or 6.
The median of these scores is 3.5, meaning that by chance 50% of the time you would get above 3.5 and 50% of the time you would get below.
Using that reasoning. it would be fair to charge $3.50 a roll. However, if I were running the game, I would charge at least $4, so I could make a profit.
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