document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=806336>Question 806336</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a player rolls doubles when she uses two dice, she wins $5. If the person rolls a 3 or 12, she wins $15. The cost to play the game is $3. Find the expectation of the game.\r<BR>\n" );
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document.write( "2(5)+3+12(15)*3= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #485795 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=485795\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a player rolls doubles when she uses two dice, she wins $5. If the person rolls a 3 or 12, she wins $15. The cost to play the game is $3. Find the expectation of the game. <BR>\n" );
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document.write( "Random \"winnings\":: 5.........15........-3<BR>\n" );
document.write( "Probabilities:::::: 6/36......3/36......|..27/36\r<BR>\n" );
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document.write( "E(x) = (6*5 + 3*15 - 27*3)/36 = -6/36 = -16 2/3 cents\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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