document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316450>Question 316450</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if a couple plans to have 6 children, what is the probability that they will have at least one girl? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226418 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=226418\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let's look at it the other way.<BR>\n" );
document.write( "What is the probability that they will have all boys?<BR>\n" );
document.write( "P(B,B,B,B,B,B)=(1/2)(1/2)(1/2)(1/2)(1/2)(1/2)=1/64<BR>\n" );
document.write( "P(all boys)+P(not all boys)=1<BR>\n" );
document.write( "P(not all boys)=1-P(all boys)<BR>\n" );
document.write( "P(at least 1 girl)=1-1/64=63/64.<BR>\n" );
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