document.write( "Question 925953: if melinda buys two tickets at the spring fling since there is a $1000 prize, one $500 prize, and five $100 prizes. there were a total of 1000 tickets sold at $3 each. what is melinda's expectation \n" ); document.write( "
Algebra.Com's Answer #561876 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! if melinda buys two tickets at the spring fling since there is a $1000 prize, one $500 prize, and five $100 prizes. there were a total of 1000 tickets sold at $3 each. what is melinda's expectation \n" ); document.write( "----- \n" ); document.write( "Random winning values:::..... 994........494.......94.......-6 \n" ); document.write( "Matching probabilities::..... (2/1000)..(2/1000)..10/1000..986/1000 \n" ); document.write( "============================== \n" ); document.write( "E(x) = [2*994 + 2*494 + 10*94 - 6*986]/1000 \n" ); document.write( "------ \n" ); document.write( "= -2000/1000 \n" ); document.write( "------ \n" ); document.write( "= -$2.00 \n" ); document.write( "-------------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------------------- \n" ); document.write( " |