document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1125007>Question 1125007</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A coin is flipped eleven times in succession. In how many ways can at least nine heads occur?<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 #741336 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=741336\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> at least 9 heads means 9, 10, or 11 heads<BR>\n" );
document.write( "for 11, it is (1/2)^11 or 0.0005<BR>\n" );
document.write( "for 10 it is 10*(1/2)^10*(1/2)=0.0049<BR>\n" );
document.write( "For 9 it is 55*.5^11 or 0.0269<BR>\n" );
document.write( "That sum is the answer or 0.0323 </SPAN>\n" );
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