document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1168330>Question 1168330</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A fair coin is flipped 12 times. Find the probability that more than 8 of the flips turn up tails. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792976 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=792976\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is the probability of 9,10,11,12 are tails.<BR>\n" );
document.write( "nine would be 12C9(1/4096), since it is 1/2 heads and 1/2 tails and the product will be (1/2)^12<BR>\n" );
document.write( "plus 12C10+12C11+1<BR>\n" );
document.write( "=220+66+12+1*1/4096<BR>\n" );
document.write( "=(299/4096)=0.0730\r<BR>\n" );
document.write( "\n" );
document.write( "or 1-binomcdf(12,8,0.5)=0.0730 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );