document.write( "Question 437614: One of the wagers in the game of roulette is to place a bet that the ball will land on a black number. (Eighteen of the numbers are black, 18 are red, and two are green.) If the ball lands on a black number, the player wins the amount of his bet. If a player bets $2, find the player's expectation. (Round your answer to two decimal places.)\r
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document.write( "Please explain in steps what you did to get this answer \n" );
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Algebra.Com's Answer #302738 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! One of the wagers in the game of roulette is to place a bet that the ball will land on a black number. (Eighteen of the numbers are black, 18 are red, and two are green.) If the ball lands on a black number, the player wins the amount of his bet. If a player bets $2, find the player's expectation. (Round your answer to two decimal places.) \n" ); document.write( "------------------------- \n" ); document.write( "Random player gain numbers:::: 2, -2 \n" ); document.write( "Corresponding Probabilities: 18/38 , 20/38 \n" ); document.write( "----------------------------------------- \n" ); document.write( "E(x) = 2(18/38) - 2(20/38) = -4/38 = -0.1052 dollars or -10.52 cents\r \n" ); document.write( "\n" ); document.write( "================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |