document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=894926>Question 894926</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Three fair coins are tossed. What is the probability that at least one is a head? (Enter the probability as a fraction.)<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 #542445 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=542445\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the probability that there are no heads. <BR>\n" );
document.write( "Then the sum of no heads and at least one head will sum to 1.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28NH%29=%281%2F2%29%281%2F2%29%281%2F2%29=1%2F8 ALIGN=MIDDLE  ALT=\"P%28NH%29=%281%2F2%29%281%2F2%29%281%2F2%29=1%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%281H%29=1-1%2F8 ALIGN=MIDDLE  ALT=\"P%281H%29=1-1%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%281H%29=7%2F8 ALIGN=MIDDLE  ALT=\"P%281H%29=7%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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