document.write( "Question 1183051: A bag contains 1 gold marbles, 8 silver marbles, and 25 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win $4. If it is silver, you win $2. If it is black, you lose $1.\r
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Algebra.Com's Answer #813204 by ikleyn(52835) $\"\"$ $\"About$

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\n" ); document.write( "A bag contains 1 gold marbles, 8 silver marbles, and 25 black marbles.
\n" ); document.write( "Someone offers to play this game:
\n" ); document.write( "You randomly select one marble from the bag.
\n" ); document.write( "If it is gold, you win $4. If it is silver, you win $2. If it is black, you lose $1.
\n" ); document.write( "What is your expected value if you play this game?
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document.write( "In all, there are  1 + 8 + 25 = 34  marbles in the bag.\r\n" );
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document.write( "The expected value of the game is\r\n" );
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document.write( "    E =  =  =   of a dollar.\r\n" );
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document.write( "In other words, playing many times, you statistically lose  = 0.147 dollars per game, in average.\r\n" );
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