document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187334>Question 187334</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Seven girls and six boys walk into a video store.  There are five salespeople available to help them.  Find the probability that the salespeople will first help the given numbers of girls and boys.  <BR>\n" );
document.write( "P(4 girls or 4 boys)  <BR>\n" );
document.write( "P(all girls or all boys)  <BR>\n" );
document.write( "P(at least 4 girls or at least 4 boys)\r<BR>\n" );
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document.write( "(Sorry, I don't have the ISBN but it's on page 661 of Adding Probablilites of the www.algebra2.com book     http://www.glencoe.com/sec/math/algebra/algebra2/algebra2_05/ ) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140473 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=140473\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Seven girls and six boys walk into a video store. There are five salespeople available to help them. Find the probability that the salespeople will first help the given numbers of girls and boys.<BR>\n" );
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document.write( "P(4 girls or 4 boys)  = P(4 girls) + P(4 boys) = (7C4 + 6C4)/13C4 = 50/715 =0.0699 <BR>\n" );
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document.write( "P(all girls or all boys) = P(5 girls) + P(5 boys) = 27/1287 = 0.0210<BR>\n" );
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document.write( "P(at least 4 girls or at least 4 boys) = 0.0699 + 0.0210 = 0.0909<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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