document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1169686>Question 1169686</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a class, there are 15 girls and 13 boys. Three students are chosen at random to form a School Council. What is the probability that there will be at least 1 boy on the School Council? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #794486 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=794486\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the probability of 0 boys and all girls.  That is what you don't want. What you want is 1-that value, since this is a dichotomy. <BR>\n" );
document.write( "There are 28 students and 28C3 ways to choose 3.<BR>\n" );
document.write( "all girls would be 15C3/28C3<BR>\n" );
document.write( "=455/3276<BR>\n" );
document.write( "=0.1389<BR>\n" );
document.write( "at least one boy chosen will have probability 1-0.1389=0.8611<BR>\n" );
document.write( " </SPAN>\n" );
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