document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=356433>Question 356433</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 7 boys and 3 girls. If we randomly select 5 kids <BR>\n" );
document.write( "what is the probability that all 3 girls will be picked?<BR>\n" );
document.write( "What is the probablilty that none of the girls will be picked?<BR>\n" );
document.write( "What is the probability of 2 girls getting picked </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #254468 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=254468\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7 boys and 3 girls<BR>\n" );
document.write( "nCr=combination of n things taken r at a time.<BR>\n" );
document.write( "a)<BR>\n" );
document.write( "(3C3 * 7C2)/10C5<BR>\n" );
document.write( "=1*21/252<BR>\n" );
document.write( "=1/12 probability that all 3 girls will be picked.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "b)<BR>\n" );
document.write( "7C5/10C5<BR>\n" );
document.write( "=21/252<BR>\n" );
document.write( "=1/12 probablilty that none of the girls will be picked.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "c)<BR>\n" );
document.write( "(3C2 * 7C3)/10C5<BR>\n" );
document.write( "=3*35/252<BR>\n" );
document.write( "=105/252<BR>\n" );
document.write( "=5/12 probability of 2 girls getting picked.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );