document.write( "Question 1208186: Tickets for a raffle cost $18. There were 757 tickets sold. One ticket will be randomly selected as the winner, and that person wins $1900 and also the person is given back the cost of the ticket. For someone who buys a ticket, what is the Expected Value (the mean of the distribution)?\r
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Algebra.Com's Answer #846429 by mccravyedwin(408)\"\" \"About 
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document.write( "Winnings   Probability        Expectations\r\n" );
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document.write( "1900+18       1/757      1918(1/757)=  2.533685601\r\n" );
document.write( "-18         756/757   (-18)(756/757)=-17.97622193\r\n" );
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document.write( "                  Total expectation =-15.44253633\r\n" );
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document.write( "If the same lottery were held many times and 757 tickets\r\n" );
document.write( "were sold every time, and you bought 1 ticket every time,\r\n" );
document.write( "then by the time you'd have played about 757 times, you'd \r\n" );
document.write( "have won about one time and you'd have averaged having \r\n" );
document.write( "lost about $15.44 per game.\r\n" );
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document.write( "Answer = -$15.44\r\n" );
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document.write( "Edwin
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