document.write( "Question 1147719: There is a game where the numbers 1 through 10 are put in hat and one number is picked. It costs $5 to play. If you pick a two then you win $15. If you pick an odd number then you win $7. You decide to play the game once. What are your expected winnings? \n" ); document.write( "

Algebra.Com's Answer #769073 by ikleyn(52832) $\"\"$ $\"About$

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document.write( "Expected winning is  -5 +  +  = -5 + 1.5 + 7*0.5 = 0.00 dollars.    ANSWER\r\n" );
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document.write( "In this solution,    is the probability to pick up a two.\r\n" );
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document.write( " is the probability to pick up an odd number.\r\n" );
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document.write( "-5 is the cost to play.\r\n" );
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\n" ); document.write( "\n" ); document.write( "This solution and this answer assumes that the experiment (the game) is repeating many times.\r
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\n" ); document.write( "\n" ); document.write( "Otherwise, the notion \"Math expectation\" is not applicable.\r
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