document.write( "Question 436879: The game of heads up is played by flipping two coins. If they both land heasds up, you win $12. If only one lands heads up,you win$12. If no conis land heads up, you win $8. If you pay $15 to play the game each time the coins are flipped, is the game a fair game? \n" ); document.write( "
Algebra.Com's Answer #302230 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The game of heads up is played by flipping two coins. \n" ); document.write( "If they both land heasds up, you win $12. \n" ); document.write( "If only one lands heads up,you win$12. \n" ); document.write( "If no conis land heads up, you win $8. \n" ); document.write( "If you pay $15 to play the game each time the coins are flipped, is the game a fair game? \n" ); document.write( "------------------------------- \n" ); document.write( "Random gain values: 12,12,8,-15 \n" ); document.write( "Matching probs are: 1/4,1/2,1/4,0 \n" ); document.write( "---- \n" ); document.write( "E(x) = 12*(1/4)+12(1/2)+8(1/4)+-15(0) \n" ); document.write( "--- \n" ); document.write( "E(x) = 3+6+2 = $11 \n" ); document.write( "---- \n" ); document.write( "I doubt that you have posted this problem correctly. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |