document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=372798>Question 372798</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm struggling with this question regarding binomial probability.  Can you please help me?\r<BR>\n" );
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document.write( "A shipment of 24 computer keyboards is rejected if 4 are checked fir defects and at least 1 is found to be defective. Find the probability that the shipment will be returned if there are actually 6 defective keyboards.\r<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 #265530 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=265530\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ways of selecting 4 out of 24 ___ 24C4\r<BR>\n" );
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document.write( "ways of selecting 4 good out of 18 good ___ 18C4\r<BR>\n" );
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document.write( "probability of none bad ___ (18C4) / (24C4)\r<BR>\n" );
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document.write( "probability of at least one bad (return) ___ 1 - [(18C4) / (24C4)] </SPAN>\n" );
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