document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1204023>Question 1204023</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Among a group of 18 stocks, suppose that 9 will perform above average and the other 9 will perform below average. If you pick 4 stocks from this group, what is the probability that all 4 will be above average in performance?<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 #840007 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52909)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=840007\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Among a group of 18 stocks, suppose that 9 will perform above average <BR>\n" );
document.write( "and the other 9 will perform below average. <BR>\n" );
document.write( "If you pick 4 stocks from this group, what is the probability <BR>\n" );
document.write( "that all 4 will be above average in performance?<BR>\n" );
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document.write( "This problem is a TWIN to the problem solved 5 minutes ago under this link\r<BR>\n" );
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document.write( "https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1204025.html\r<BR>\n" );
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document.write( "The solution follows to the same logic.\r<BR>\n" );
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document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "    P = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%5B9%5D%5E4%2FC%5B18%5D%5E4 ALIGN=MIDDLE  ALT=\"C%5B9%5D%5E4%2FC%5B18%5D%5E4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=126%2F3060 ALIGN=MIDDLE  ALT=\"126%2F3060\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F170 ALIGN=MIDDLE  ALT=\"7%2F170\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 0.041176  (rounded).    <U>ANSWER</U>\r\n" );
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document.write( "Solved.\r<BR>\n" );
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document.write( "To see many other similar &nbsp;(and different) &nbsp;problems solved, &nbsp;look into the lesson\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Elementary-Probability-problems-related-to-Combinations.lesson>Elementary Probability problems related to combinations</A> \r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( "Learn the subject from there.\r<BR>\n" );
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