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Example 65

 

Example 65: What is your expected value on the following game?  You offer your friends $1 if they can roll a one on a die, $3 if they can roll a three and $5 if they can roll a five.  However, they pay the dollar amount equal to what they roll on the die if they roll any even number on the die.  Should your friends play this game against you?

 

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