document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=952636>Question 952636</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 8000 tickets are sold at 50 cents each, find the expected winnings for a person buying 1 ticket. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #581759 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=581759\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 8000 tickets are sold at 50 cents each, find the expected winnings for a person buying 1 ticket.<BR>\n" );
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document.write( "Random \"winnings\":: 999.5....299.5.....9.50....-0.5<BR>\n" );
document.write( "Corresponding probs: 1/8000.. 2/8000..20/8000..7977/8000<BR>\n" );
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document.write( "E(winnings) = (1*999.5 + 2*299.5 + 20*9.5 - 7977*0.5)/8000<BR>\n" );
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document.write( "E(winnings) = -27.5 cents<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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