document.write( "Question 1146096: Ten thousand raffle tickets are sold. One first prize of $ 2 comma 000​, 3 second
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Algebra.Com's Answer #767409 by Edwin McCravy(20065)\"\" \"About 
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document.write( "Ten thousand raffle tickets are sold. One first prize of $ 2000​, 3 second prizes\r\n" );
document.write( "of $600 ​each, and 9 third prizes of $ 400 each are to be​ awarded, with all\r\n" );
document.write( "winners selected randomly. If you purchase one​ ticket, what are your expected​\r\n" );
document.write( "winnings?\r\n" );
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document.write( "I will assume this raffle will be conducted like most raffles.  That is, I can't\r\n" );
document.write( "win more than 1 prize.  The tickets are drawn one at a time without replacing.\r\n" );
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document.write( "The probability of my ticket being drawn to win the $2000 is 1/10000.\r\n" );
document.write( "My expectation of winning that is ($2000)(1/10000) is $0.20\r\n" );
document.write( "The probability of my ticket being drawn to win the 1st $600 is 1/9999.\r\n" );
document.write( "My expectation of winning that is ($600)(1/9999) is $0.0600060006.\r\n" );
document.write( "The probability of my ticket being drawn to win the 2nd $600 is 1/9998.\r\n" );
document.write( "My expectation of winning that is ($600)(1/9998) is $0.0600120024.\r\n" );
document.write( "The probability of my ticket being drawn to win the 3rd $600 is 1/9997.\r\n" );
document.write( "My expectation of winning that is ($600)(1/9997) is $0.0600180054.\r\n" );
document.write( "The probability of my ticket being drawn to win the 1st $400 is 1/9996.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9996) is $0.0400160064.\r\n" );
document.write( "The probability of my ticket being drawn to win the 2nd $400 is 1/9995.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9995) is $0.04002001.\r\n" );
document.write( "The probability of my ticket being drawn to win the 3rd $400 is 1/9994.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9994) is $0.0400240144.\r\n" );
document.write( "The probability of my ticket being drawn to win the 4th $400 is 1/9993.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9993) is $0.0400280196.\r\n" );
document.write( "The probability of my ticket being drawn to win the 5th $400 is 1/9992.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9992) is $0.0400320256.\r\n" );
document.write( "The probability of my ticket being drawn to win the 6th $400 is 1/9991.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9991) is $0.0400360324.\r\n" );
document.write( "The probability of my ticket being drawn to win the 7th $400 is 1/9990.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9990) is $0.04004004.\r\n" );
document.write( "The probability of my ticket being drawn to win the 8th $400 is 1/9989.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9989) is $0.0400440485.\r\n" );
document.write( "The probability of my ticket being drawn to win the 9th $400 is 1/9988.\r\n" );
document.write( "My expectation of winning that is ($400)(1/9988) is $0.0400480577.\r\n" );
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document.write( "My total expectation is the sum of those, which is:\r\n" );
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document.write( "$ 0.2000000000\r\n" );
document.write( "$ 0.0600060006\r\n" );
document.write( "$ 0.0600120024\r\n" );
document.write( "$ 0.0600180054\r\n" );
document.write( "$ 0.0400160064\r\n" );
document.write( "$ 0.0400200100\r\n" );
document.write( "$ 0.0400240144\r\n" );
document.write( "$ 0.0400280196\r\n" );
document.write( "$ 0.0400320256\r\n" );
document.write( "$ 0.0400360324\r\n" );
document.write( "$ 0.0400400400\r\n" );
document.write( "$ 0.0400440485\r\n" );
document.write( "$ 0.0400480577\r\n" );
document.write( "--------------\r\n" );
document.write( "$ 0.7403242630  <--total expectation\r\n" );
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document.write( "Edwin
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