document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=984388>Question 984388</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An urn contains six red balls, five white balls, and four black balls. Four balls are drawn from the urn at random without replacement. For each red ball drawn, you win $6, and for each black ball drawn, you lose $9. Let X represent your net winnings.\r<BR>\n" );
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document.write( "Compute E(X), your expected net winnings.\r<BR>\n" );
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document.write( "E(X) = <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #605576 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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/cgi-bin/show-face.mpl?user=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=605576\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28R%29=6%2F%286%2B5%2B4%29=6%2F15=2%2F5 ALIGN=MIDDLE  ALT=\"P%28R%29=6%2F%286%2B5%2B4%29=6%2F15=2%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28W%29=5%2F15=1%2F3 ALIGN=MIDDLE  ALT=\"P%28W%29=5%2F15=1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28B%29=4%2F15 ALIGN=MIDDLE  ALT=\"P%28B%29=4%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%29=6%2A%282%2F5%29%2B0%2A%281%2F3%29-9%284%2F15%29 ALIGN=MIDDLE  ALT=\"E%28X%29=6%2A%282%2F5%29%2B0%2A%281%2F3%29-9%284%2F15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%29=12%2F5-36%2F15 ALIGN=MIDDLE  ALT=\"E%28X%29=12%2F5-36%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%29=36%2F15-36%2F15 ALIGN=MIDDLE  ALT=\"E%28X%29=36%2F15-36%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%29=0 ALIGN=MIDDLE  ALT=\"E%28X%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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