document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=106764>Question 106764</A>: <I><SPAN STYLE=\"word-break: break-all;\">     A box contains ten $1 bills, six $5 bills, and four $10 bills. A person is charged $5 to select a bill. What is the expected value?\r<BR>\n" );
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document.write( "  a. -$1    <BR>\n" );
document.write( "  b. $1    <BR>\n" );
document.write( "  c. -$2    <BR>\n" );
document.write( "  d. -$1.50    <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 #77705 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=77705\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 20 bills in box so chance of any individual bill is .05\r<BR>\n" );
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document.write( "expected return is 10(1)(.05)+6(5)(.05)+4(10)(.05)=80(.05)\r<BR>\n" );
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document.write( "but it costs $5 to select, so expected value is \"expected return\" minus 5 </SPAN>\n" );
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